Summary:
At runtime this format specifier is not correctly handled. The misformatted string get's passed to strlen and eventually causes an assertion.
```
#0  strlen () at /home/xpgcust/tree/RJ-2024.3/tb/p4root/Xtensa/SWConfig/../Target-libs/newlib/newlib/libc/machine/xtensa/strlen.S:59
pytorch#1  0x610bd83d in _svfprintf_r (data=<optimized out>, fp=<optimized out>, fmt0=<optimized out>, ap=...)
    at /home/xpgcust/tree/RJ-2024.3/tb/p4root/Xtensa/SWConfig/../Target-libs/newlib/newlib/libc/stdio/vfprintf.c:1380
pytorch#2  0x610ffcf4 in _vsnprintf_r (ptr=<optimized out>, size=256, fmt=0x20 <error: Cannot access memory at address 0x20>, str=<optimized out>, ap=...)
    at /home/xpgcust/tree/RJ-2024.3/tb/p4root/Xtensa/SWConfig/../Target-libs/newlib/newlib/libc/stdio/vsnprintf.c:66
pytorch#3  vsnprintf (str=0x14012c40 <irt_janus_workq_stack+4960> "Missing operator: [z", size=256, fmt=0x20 <error: Cannot access memory at address 0x20>, ap=...)
    at /home/xpgcust/tree/RJ-2024.3/tb/p4root/Xtensa/SWConfig/../Target-libs/newlib/newlib/libc/stdio/vsnprintf.c:41
pytorch#4  0x610d4ddd in executorch::runtime::internal::vlogf (level=<optimized out>, timestamp=<optimized out>, filename=0x14012c40 <irt_janus_workq_stack+4960> "Missing operator: [z",
    function=0x60fd5fd7 "resolve_operator", line=735, format=0x60fd6023 "Missing operator: [%zd] %s", args=...) at xplat/executorch/runtime/platform/log.cpp:88
pytorch#5  0x610ce2db in executorch::runtime::internal::logf (level=executorch::runtime::LogLevel::Error, timestamp=3330441403,
    filename=0x14012c40 <irt_janus_workq_stack+4960> "Missing operator: [z", function=0x14012d3e <irt_janus_workq_stack+5214> "\026\262\273\200\202", <incomplete sequence \306>,
    line=735, format=0x60fd6023 "Missing operator: [%zd] %s")
    at /execution-workspace/buck-out/v2/gen/fbsource/e7835b44f7cec64a/xplat/executorch/runtime/platform/__platform__/buck-headers/executorch/runtime/platform/log.h:140
pytorch#6  0x610d8b60 in executorch::runtime::Method::resolve_operator (this=<optimized out>, op_index=1, kernels=<optimized out>, kernel_index=<optimized out>, args=..., n_args=7)
    at xplat/executorch/runtime/executor/method.cpp:731
pytorch#7  0x60ff2d70 in executorch::runtime::Method::init (this=0x14012fa0 <irt_janus_workq_stack+5824>, s_plan=<optimized out>, external_data_map=<optimized out>)
    at xplat/executorch/runtime/executor/method.cpp:926
pytorch#8  0x610d8c33 in executorch::runtime::Method::load (s_plan=0xb21690b4, program=<optimized out>, memory_manager=0xabd400f0, event_tracer=0xad540000, external_data_map=0x0)
    at xplat/executorch/runtime/executor/method.cpp:761
pytorch#9  0x610db216 in executorch::runtime::Program::load_method (this=0xabd4000c, method_name=<optimized out>, memory_manager=0xabd400f0, event_tracer=0xad540000,
    named_data_map=<optimized out>) at xplat/executorch/runtime/executor/program.cpp:299
pytorch#10 0x60ff1a80 in MethodContainer::init (this=<optimized out>, modelBuffer=..., weightBuffer=..., methodName=<optimized out>, plannedMemoryBuffers=..., methodAllocator=...,
    tempAllocator=..., etDumpBuffer=..., debugBufferDataSink=0x0) at arvr/firmware/silicon/ml/executorch/method_container/src/MethodContainer.cpp:104
pytorch#11 0x610cdef9 in InferenceRunnerExecutorch::initializeExecutorchObjects (this=<optimized out>) at arvr/firmware/silicon/turing/tirt/inference/src/InferenceRunnerExecutorch.cpp:255
pytorch#12 0x610ce06a in InferenceRunnerExecutorch::evaluate (this=0x14013268 <irt_janus_workq_stack+6536>) at arvr/firmware/silicon/turing/tirt/inference/src/InferenceRunnerExecutorch.cpp:297
pytorch#13 0x610cd186 in execute_model (inferenceRuntimeContext=0x24227680) at arvr/firmware/silicon/turing/tirt/inference/src/InferenceRunner.cpp:60
pytorch#14 0x610ccf0c in tirt_engine_invoke (inference_request=0x24220000) at arvr/firmware/silicon/turing/tirt/engine/src/Engine.cpp:125
pytorch#15 0x610cce25 in tirt::dispatch::tirt_command_process (request=0x24220000) at arvr/firmware/silicon/turing/tirt/command_dispatch/src/tirt_dispatcher.cpp:71
pytorch#16 0x610ccae7 in irt_janus_msg_handler (sess=0x60fc5f80 <FDLADSP0::coleman_fdladsp0_cp_tirt_fdladsp0_session_views_cp_iaas_fdlamcu_to_tirt_fdladsp0>, ctx=0x0,
    header=0x140137fd <irt_janus_workq_stack+7965>, payload=0x24220000, status=<optimized out>) at arvr/firmware/silicon/turing/tirt/src/IrtIccJanus.cpp:143
--Type <RET> for more, q to quit, c to continue without paging--
pytorch#17 0x610c80ec in _janus_service_handle_message (sess=0x60fc5f80 <FDLADSP0::coleman_fdladsp0_cp_tirt_fdladsp0_session_views_cp_iaas_fdlamcu_to_tirt_fdladsp0>,
    service_info=0x140137f8 <irt_janus_workq_stack+7960>) at arvr/firmware/wearables/libs/janus/session/consumer.c:1099
pytorch#18 janus_service (sess=0x60fc5f80 <FDLADSP0::coleman_fdladsp0_cp_tirt_fdladsp0_session_views_cp_iaas_fdlamcu_to_tirt_fdladsp0>, method=JANUS_SERVICE_ONE)
    at arvr/firmware/wearables/libs/janus/session/consumer.c:2236
pytorch#19 0x610c9d9a in _work_handler (w=0x14009e08 <s_janus_workq_sessions+8>) at arvr/firmware/wearables/libs/janus/modules/janus_workq/src/workq.c:62
pytorch#20 0x61100409 in triggered_work_handler (work=0x14009e08 <s_janus_workq_sessions+8>) at third-party/zephyr/zephyr_rtos/v3.7.0/zephyr/kernel/poll.c:590
pytorch#21 0x610d139f in work_queue_main (workq_ptr=0x14000f98 <s_janus_workq+24>, p2=<optimized out>, p3=<optimized out>) at third-party/zephyr/zephyr_rtos/v3.7.0/zephyr/kernel/work.c:688
pytorch#22 0x610c1172 in z_thread_entry (entry=0x610d1344 <work_queue_main>, p1=0x14000f98 <s_janus_workq+24>, p2=0x14001038 <s_janus_workq+184>, p3=0xfffffffd)
    at third-party/zephyr/zephyr_rtos/v3.7.0/zephyr/lib/os/thread_entry.c:48
```

Reviewed By: lucylq, JacobSzwejbka

Differential Revision: D79776266