boot: zephyr: Update changed Nordic family Kconfig #1843

Job	Run time
config (RELEASE 2,4,6 SIGNATURE)	9m 2s
config (RELEASE 2,4,6 SIGNATURE LOW)	13m 25s
config (RELEASE 2,4,6 SIGNATURE MEDIUM)	17m 19s
config (RELEASE 8,10 SIGNATURE)	6m 31s
config (RELEASE 8,10 SIGNATURE LOW)	9m 22s
config (RELEASE 8,10 SIGNATURE MEDIUM)	11m 57s
config (MINSIZEREL 2,4,6 SIGNATURE)	15m 7s
config (MINSIZEREL 2,4,6 SIGNATURE LOW)	20m 16s
config (MINSIZEREL 2,4,6 SIGNATURE MEDIUM)	23m 43s
config (MINSIZEREL 8,10 SIGNATURE)	10m 32s
config (MINSIZEREL 8,10 SIGNATURE LOW)	13m 40s
config (MINSIZEREL 8,10 SIGNATURE MEDIUM)	16m 8s
	2h 47m 2s

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