ASoC: SOF: hda-sdw-bpt: mark bpt_stream->link_locked #7760

Job	Run time
GCC build X86_64 with W=1	2m 59s
Sparse check	3m 1s
GCC static -fanalyzer	4m 11s
GCC build arm64 allmodconfig	2m 57s
Clang build x86_64	4m 33s
GCC build X86_64	17m 53s
GCC build i386	15m 51s
GCC build X86_64 with W=1 allmodconfig	2m 3s
GCC build arm64	21m 18s
	1h 14m 46s

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