ASoC: sdw_utils: subtract the endpoint that is not present #8079

Job	Run time
GCC static -fanalyzer	4m 26s
GCC build arm64 allmodconfig	2m 7s
Clang build x86_64	5m 0s
Sparse check	3m 23s
GCC build X86_64	19m 29s
GCC build X86_64 with W=1	3m 22s
GCC build arm64	21m 52s
GCC build i386	16m 29s
GCC build X86_64 with W=1 allmodconfig	2m 11s
	1h 18m 19s

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