[SYCL][ESIMD][E2E] Run aot_mixed.cpp only on Gen12 for now #200

Job	Run time
detect_changes / Decide which tests could be affected by the changes	6s
build / Build + LIT	3m 56s
test-perf	0s
test (Matrix E2E tests on Intel Arc A-Series Graphics, ["Linux", "arc"], ghcr.io/intel/llvm/ubunt... / Matrix E2E tests on Intel Arc A-Series Graphics	1m 22s
test (Intel, ["Linux", "gen12"], ghcr.io/intel/llvm/ubuntu2204_intel_drivers:latest, -u 1001 --de... / Intel	46m 32s
test (AMD/HIP, ["Linux", "amdgpu"], ghcr.io/intel/llvm/ubuntu2204_build:7ed894ab0acc8ff09262113fd... / AMD/HIP	12m 20s
	1h 4m 16s

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