kfdtest: Query asic name directly from topology node

This saves us from maintaining device ID to Asic mapping in the scripts.

Moreover, stop using abbrevation asic names to avoid confusion.

Change-Id: I7ce583b26b09b627c142aae41932483b28c545d8
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>

tests/kfdtest/scripts/kfdtest.exclude

@@ -117,15 +117,7 @@ FIJI_TESTS_BLACKLIST=\
 "KFDQMTest.PM4EventInterrupt:"\
 "$SDMA_BLACKLIST"
 
-ELLESMERE_TESTS_BLACKLIST=\
-"$BLACKLIST_ALL_ASICS:"\
-"$SDMA_BLACKLIST"
-
-BAFFIN_TESTS_BLACKLIST=\
-"$BLACKLIST_ALL_ASICS:"\
-"$SDMA_BLACKLIST"
-
-LEXA_TESTS_BLACKLIST=\
+POLARIS_TESTS_BLACKLIST=\
 "$BLACKLIST_ALL_ASICS:"\
 "$SDMA_BLACKLIST"