kfdtest.exclude: Remove BasicCuMaskingEven from gfx908

The initial baseline measurements are proving inconsistent, which
results in the test failing more often with different variant rates

Change-Id: I1f4e04bf7d615cf39de9605bd5141a997b22cdfc

tests/kfdtest/scripts/kfdtest.exclude

@@ -188,9 +188,11 @@ FILTER[renoir]=\
 
 # KFDExceptionTest.* (KFD-435)
 # KFDEvictTest.BurstyTest (KFD-425)
+# KFQMTest.BasicCuMaskingEven (Issues with baseline measurement)
 FILTER[arcturus]=\
 "$BLACKLIST_ALL_ASICS:"\
 "KFDExceptionTest.FaultStorm:"\
+"KFDQMTest.BasicCuMaskingEven:"\
 "KFDEvictTest.BurstyTest"
 
 FILTER[navi10]=\