[E2E] Redo CCS configuration in CCS-related tests

[ianayl]

Recently E2E tests related to CCS configuration started to fail: #18576

However, in hindsight, we set ZEX_NUMBER_OF_CCS to 0:4, which unexpectedly causes issues:

• Battlemage only supports up to 2 CCS'es at the same time; not all battlemage cards support this. CCS value of 1 actually results in the test failures in Test failing on Linux BMG and DG2 Driver 25.13.33276.19 #18576 to pass
  • This is a test run on battlemage on a commit with ZEX_NUMBER_OF_CCS=1 https://github.com/intel/llvm/actions/runs/15494019989/job/43626971531#step:17:1093
• GEN12 straight-up doesn't support partition_properties; I am not 100% certain but I don't think GEN12 even has the concept of a subslice. I'm not sure if ZEX_NUMBER_OF_CCS would even work.

Thus, the failing test

  SYCL :: Adapters/level_zero/ext_intel_cslice.cpp
  SYCL :: Adapters/level_zero/ext_intel_queue_index.cpp
  SYCL :: Adapters/sycl-ls-uuid-subdevs.cpp

Should probably have their ZEX_NUMBER_OF_CCS value adjusted depending on GPU.