soc: add OpenHW Group CVA6 SoC #146510

Job	Run time
twister-build-prep	2m 45s
twister-build (1)	31m 14s
twister-build (2)	35m 33s
twister-build (3)	30m 42s
twister-build (4)	39m 28s
twister-build (5)	20m 31s
twister-build (6)	24m 47s
twister-build (7)	28m 23s
Publish Unit Tests Results	14s
Check Twister Status / all jobs passed	1s
	3h 33m 38s

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