kfdtest: Remove gfx940/941 references

Support was removed for these eng samples, so remove them from the
blacklist, and make sure that we're using 942 for the shader store


[ROCm/ROCR-Runtime commit: f755981f03]

projects/rocr-runtime/libhsakmt/tests/kfdtest/src/KFDASMTest.cpp

@@ -43,7 +43,7 @@ static const std::vector<uint32_t> TargetList = {
     0x090009,
     0x09000a,
     0x09000c,
-    0x090400,
+    0x090402,
     0x0a0100,
     0x0a0101,
     0x0a0102,