[SYCL][E2E] XFAIL launch_policy_lmem.cpp (#15276)

Failing in new driver, see #15275.

It will XPASS in this PR, but once this is merged I will immediately
merge the driver update PR.

---------

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

sycl/test-e2e/syclcompat/launch/launch_policy_lmem.cpp

@@ -23,6 +23,9 @@
 // RUN: %{build} -fsycl-device-code-split=per_kernel -o %t.out
 // RUN: %{run} %t.out
 
+// https://github.com/intel/llvm/issues/15275
+// XFAIL: linux && (gpu-intel-gen12 || gpu-intel-dg2)
+
 #include <sycl/detail/core.hpp>
 #include <sycl/ext/oneapi/properties/properties.hpp>
 #include <sycl/group_barrier.hpp>