boards: add common configuration for CDC ACM UART #152967

Job	Run time
twister-build-prep / prep_pr	3m 15s
twister-build-prep / prep_push	0s
twister-build (1)	27m 25s
twister-build (2)	33m 30s
twister-build (3)	28m 47s
twister-build (4)	37m 9s
twister-build (5)	24m 40s
twister-build (6)	26m 27s
twister-build (7)	27m 51s
Publish Unit Tests Results	13s
Check Twister Status / all jobs passed	1s
	3h 29m 18s

Provide feedback