soundwire: intel_auxdevice: add kernel parameter for mclk divider #49

Job	Run time
GCC build arm64 allmodconfig	1m 41s
Clang build x86_64	4m 10s
GCC static -fanalyzer	4m 38s
GCC build arm64	17m 44s
GCC build i386	16m 47s
GCC build X86_64	25m 44s
GCC build X86_64 with W=1	3m 15s
GCC build X86_64 with W=1 allmodconfig	2m 5s
Sparse check	2m 58s
	1h 19m 2s

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