SoundWire: Intel: improve PM handling #7516

Job	Run time
GCC static -fanalyzer	3m 37s
Sparse check	4m 11s
GCC build X86_64 with W=1	2m 38s
GCC build X86_64	3m 5s
GCC build arm64	2m 40s
GCC build arm64 allmodconfig	1m 34s
Clang build x86_64	4m 5s
GCC build i386	15m 8s
GCC build X86_64 with W=1 allmodconfig	1m 34s
	38m 32s

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