drivers: clock_control: nrf: add choice variable

Add choice variables for CLOCK_CONTROL_NRF_SOURCE and
CLOCK_CONTROL_NRF_ACCURACY such that the choices may be augmented
out-of-tree.

Signed-off-by: Thomas Stenersen <[email protected]>

Author: Thomas Stenersen

drivers/clock_control/Kconfig.nrf

@@ -14,7 +14,7 @@ menuconfig CLOCK_CONTROL_NRF
 
 if CLOCK_CONTROL_NRF
 
-choice
+choice CLOCK_CONTROL_NRF_SOURCE
 	prompt "32KHz clock source"
 	default CLOCK_CONTROL_NRF_K32SRC_XTAL
 
@@ -35,7 +35,7 @@ config CLOCK_CONTROL_NRF_K32SRC_BLOCKING
 	  initially start running and automatically switch to crystal when
 	  ready.
 
-choice
+choice CLOCK_CONTROL_NRF_ACCURACY
 	prompt "32KHz clock accuracy"
 	default CLOCK_CONTROL_NRF_K32SRC_500PPM if CLOCK_CONTROL_NRF_K32SRC_RC
 	default CLOCK_CONTROL_NRF_K32SRC_20PPM