AMD SOF Soundwire generic machine driver code refactor #6827

Job	Run time
GCC build arm64 allmodconfig	1m 52s
Clang build x86_64	4m 17s
GCC static -fanalyzer	4m 25s
GCC build arm64	17m 41s
GCC build i386	15m 19s
GCC build X86_64 with W=1	2m 56s
GCC build X86_64	19m 2s
GCC build X86_64 with W=1 allmodconfig	2m 6s
Sparse check	3m 20s
	1h 10m 58s

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