AMD SOF stack fixes and improvements related to IPC flags #8110

Job	Run time
GCC build i386	16m 42s
GCC build X86_64	19m 23s
GCC build X86_64 with W=1	2m 56s
Sparse check	3m 1s
Clang build x86_64	4m 31s
GCC static -fanalyzer	3m 56s
GCC build arm64 allmodconfig	1m 35s
GCC build arm64	21m 52s
GCC build X86_64 with W=1 allmodconfig	1m 37s
	1h 15m 33s

Provide feedback