AMD SOF stack fixes and improvements related to IPC flags #8115

Job	Run time
Sparse check	3m 0s
GCC static -fanalyzer	3m 53s
GCC build i386	16m 50s
GCC build X86_64 with W=1	3m 6s
GCC build X86_64 with W=1 allmodconfig	1m 44s
Clang build x86_64	4m 40s
GCC build arm64 allmodconfig	1m 39s
GCC build arm64	21m 54s
GCC build X86_64	19m 3s
	1h 15m 49s

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