drivers: rtc: sam0: Add RTC calendar driver and clock fixes #149196

Job	Run time
twister-build-prep / prep_pr	3m 27s
twister-build-prep / prep_push	0s
twister-build (1)	36m 5s
twister-build (2)	42m 8s
twister-build (3)	34m 58s
twister-build (4)	54m 17s
twister-build (5)	23m 51s
twister-build (6)	26m 48s
twister-build (7)	36m 30s
twister-build (8)	37m 46s
twister-build (9)	39m 43s
twister-build (10)	53m 31s
twister-build (11)	1h 3m 20s
twister-build (12)	49m 22s
twister-build (13)	44m 9s
twister-build (14)	36m 18s
Publish Unit Tests Results	14s
Check Twister Status / all jobs passed	1s
	9h 42m 28s

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