Updated xxHash #3468

Job	Run time
Linux -> Pre-checks	15s
Linux -> GCC-x64, Release	11m 3s
Linux -> GCC-x64, Debug	12m 31s
Linux -> Clang-NO_GLSLANG-x64, Debug	7m 48s
Linux -> Clang-x64, Debug	13m 8s
Linux -> Clang-NO_GLSLANG-NO_HLSL-x64, Release	6m 33s
Linux -> Clang-x64, Release	12m 44s
	1h 4m 2s

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