[HIPIFY][tests] Add more suffixes to lit config

[ROCm/hip commit: 58faf1ddc9]

projects/hip/tests/hipify-clang/lit.cfg

@@ -13,7 +13,7 @@ import lit.util
 config.name = 'hipify'
 
 # suffixes: CUDA source is only supported
-config.suffixes = ['.cu']
+config.suffixes = ['.cu','.cuh','.cpp','.c','.hpp','.h']
 
 # testFormat: The test format to use to interpret tests.
 config.test_format = lit.formats.ShTest()