tests: remove TCC_EA_* counters to support gfx8

TCC_EA_* counters are only available on gfx9 devices, and thus
the memory validation tests fail on gfx8. To fix the issue,
this patch removes TCC_EA_* metrics and keeps only the ones
supported by both gfx8 and gfx9.

Change-Id: Ib3889435b88f2e6970981304a72cee75d5343d4b


[ROCm/rocprofiler commit: 6152563612]

projects/rocprofiler/test/memory_validation/pmc_config_files/cache_pmc.txt

@@ -1,6 +1,4 @@
 pmc : FlatVMemInsts SFetchInsts
 pmc : TCC_HIT_sum TCC_MISS_sum
-pmc : TCC_EA_RDREQ_sum TCC_EA_WRREQ_sum
-pmc : TCC_EA_RDREQ_32B_sum TCC_EA_WRREQ_64B_sum
 pmc : FetchSize
 pmc : WriteSize Mem32Bwrites