Add SDCA widgets, routes and controls #7422

Job	Run time
GCC build arm64 allmodconfig	1m 20s
GCC static -fanalyzer	2m 26s
Clang build x86_64	3m 59s
GCC build arm64	19m 4s
GCC build i386	15m 11s
GCC build X86_64	18m 49s
GCC build X86_64 with W=1	2m 35s
GCC build X86_64 with W=1 allmodconfig	1m 32s
Sparse check	3m 50s
	1h 8m 46s

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