CorrectDXGIFormat: fixed handling of D32S8 format #3459

Job	Run time
Linux -> Pre-checks	19s
Linux -> GCC-x64, Debug	11m 54s
Linux -> GCC-x64, Release	10m 28s
Linux -> Clang-x64, Release	12m 40s
Linux -> Clang-NO_GLSLANG-x64, Debug	8m 0s
Linux -> Clang-x64, Debug	13m 4s
Linux -> Clang-NO_GLSLANG-NO_HLSL-x64, Release	6m 23s
	1h 2m 48s

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