ASoC: rt-sdw-common: fix rt_sdca_index_update_bits function parameter description #6952

Job	Run time
GCC build arm64	17m 35s
Clang build x86_64	4m 5s
GCC build arm64 allmodconfig	1m 26s
GCC static -fanalyzer	3m 38s
GCC build i386	15m 24s
GCC build X86_64	17m 15s
GCC build X86_64 with W=1	2m 45s
GCC build X86_64 with W=1 allmodconfig	1m 22s
Sparse check	7m 22s
	1h 10m 52s

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