AMD SOF Soundwire generic machine driver code refactor #6825

Job	Run time
Clang build x86_64	4m 50s
GCC build arm64 allmodconfig	2m 2s
GCC static -fanalyzer	4m 27s
GCC build arm64	18m 39s
GCC build i386	15m 18s
GCC build X86_64	19m 2s
GCC build X86_64 with W=1	3m 0s
GCC build X86_64 with W=1 allmodconfig	2m 1s
Sparse check	3m 12s
	1h 12m 31s

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