boards: renesas: Add support for Renesas RA entropy running on TRNG HWIP #153429

Job	Run time
twister-build-prep / prep_pr	3m 26s
twister-build-prep / prep_push	0s
twister-build (1)	52m 23s
twister-build (2)	55m 36s
twister-build (3)	59m 4s
twister-build (4)	53m 44s
twister-build (5)	37m 43s
twister-build (6)	26m 10s
twister-build (7)	33m 42s
twister-build (8)	31m 55s
twister-build (9)	47s
twister-build (10)	34m 35s
Publish Unit Tests Results	48s
Check Twister Status / all jobs passed	1s
	6h 29m 54s

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