kfdtest: blacklist KFDMemoryTest.DeviceHdpFlush on gfx90a

Due to cache coherence change, the remote vram mapping is changed
to cached, the written value by remote shader will not be read by
local shader. So the test will fail.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Change-Id: I2b64e8a30bed0066e159bad9bb7febae5ebe84aa


[ROCm/ROCR-Runtime commit: ec7ba38b23]

projects/rocr-runtime/tests/kfdtest/scripts/kfdtest.exclude

@@ -196,7 +196,8 @@ FILTER[arcturus]=\
 FILTER[aldebaran]=\
 "$BLACKLIST_ALL_ASICS:"\
 "KFDExceptionTest.FaultStorm:"\
-"KFDEvictTest.BurstyTest"
+"KFDEvictTest.BurstyTest:"\
+"KFDMemoryTest.DeviceHdpFlush"
 
 FILTER[navi10]=\
 "$BLACKLIST_ALL_ASICS:"\