Add support for Avell B.ON (OEM rebranded NUC15) #7872

Job	Run time
GCC static -fanalyzer	4m 37s
Sparse check	5m 12s
GCC build arm64	22m 30s
GCC build arm64 allmodconfig	2m 23s
GCC build X86_64	21m 47s
GCC build X86_64 with W=1 allmodconfig	2m 9s
Clang build x86_64	4m 47s
GCC build i386	16m 12s
GCC build X86_64 with W=1	3m 49s
	1h 23m 26s

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