Add SiM3U SPI support #148850

Job	Run time
twister-build-prep / prep_pr	3m 41s
twister-build-prep / prep_push	0s
twister-build (1)	26m 27s
twister-build (2)	34m 49s
twister-build (3)	30m 48s
twister-build (4)	37m 43s
twister-build (5)	25m 6s
twister-build (6)	25m 32s
twister-build (7)	32m 58s
twister-build (8)	32m 47s
Publish Unit Tests Results	10s
Check Twister Status / all jobs passed	1s
	4h 10m 2s

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