Updates to Arm Zephyr CI Add Model Test (#13115)

### Summary
Previously, the `test-models-arm-zephyr` CI job ran the Add model to
test and verify the flow for running ExecuTorch models on a simulated
device running Zephyr RTOS. The original test relied on hard coded paths
and artifacts that made the test unusable for other models. Now, the
test has been templatized so that adding models can be done easily (and
will follow in a future PR).

### Test plan
Manually tested the commands, and the CI job will confirm that the test
still passes.

Author: BujSet

.github/workflows/trunk.yml

@@ -78,6 +78,7 @@ jobs:
         mkdir -p zephyr_scratch/
         cd zephyr_scratch
         export ZEPHYR_PROJ_ROOT=$(realpath $(pwd))
+        export ARM_FVP_TUTORIALS_ROOT=$ZEPHYR_PROJ_ROOT/zephyr/samples/modules/executorch/arm-fvp-tutorials
 
         download_arm_zephyr_sdk
         ./zephyr-sdk-0.16.0/setup.sh -c -t arm-zephyr-eabi
@@ -90,13 +91,46 @@ jobs:
         .ci/scripts/setup-arm-baremetal-tools.sh --target-toolchain zephyr
         source examples/arm/ethos-u-scratch/setup_path.sh
         source $ZEPHYR_PROJ_ROOT/zephyr/zephyr-env.sh
-        cd $ZEPHYR_PROJ_ROOT/zephyr/samples/modules/executorch/arm/hello_world
+
+        # Get the model as PTE
+        python -m examples.arm.aot_arm_compiler --model_name="${MODEL_NAME}" --output="${MODEL_NAME}.pte"
+
+        # Generate the C-style header
+        cd $ARM_FVP_TUTORIALS_ROOT
+        python build_model.py \
+            --executorch-root $ZEPHYR_PROJ_ROOT/modules/lib/executorch \
+            --pte-file $ZEPHYR_PROJ_ROOT/modules/lib/executorch/${MODEL_NAME}.pte \
+            --output-path $ARM_FVP_TUTORIALS_ROOT/models/${MODEL_NAME}/src/
+
+        cd $ARM_FVP_TUTORIALS_ROOT/models/${MODEL_NAME}/
+
+        # Build the zephyr elf
         west build -p always -b mps3/corstone300/fvp
-        FVP_Corstone_SSE-300_Ethos-U55 -a build/zephyr/zephyr.elf -C mps3_board.visualisation.disable-visualisation=1 -C mps3_board.telnetterminal0.start_telnet=0 -C mps3_board.uart0.out_file='sim.out'  -C cpu0.CFGITCMSZ=15 -C cpu0.CFGDTCMSZ=15 --simlimit 120
 
-        grep -qF "Output[0][0]: (float) 2.000000" sim.out
+        # Run the simulation
+        FVP_Corstone_SSE-300_Ethos-U55 -a build/zephyr/zephyr.elf \
+            -C mps3_board.visualisation.disable-visualisation=1 \
+            -C mps3_board.telnetterminal0.start_telnet=0 \
+            -C mps3_board.uart0.out_file='sim.out'  \
+            -C cpu0.CFGITCMSZ=15 \
+            -C cpu0.CFGDTCMSZ=15 \
+            --simlimit 120
+
+        # Report failure if any of the ouptut verification checks fail
+        grep -qF "ERROR" sim.out
+        exit_status=$? #store 0 if found (failure), 1 if not (success)
+        if [[ "$exit_status" -eq "0" ]]; then
+          cat sim.out
+          exit 1
+        fi
+
+        # Report fail if simulation does not complete successfully
+        grep -qF "SUCCESS: Program complete, exiting." sim.out
         exit_status=$? #store 0 if found (success), 1 if not (failure)
-        exit $exit_status
+        if [[ "$exit_status" -eq "1" ]]; then
+          cat sim.out
+          exit 1
+        fi
 
   test-models-linux-aarch64:
     name: test-models-linux-aarch64