boards: arm: Remove redundant CONFIG_BOARD_* from all frdm defconfigs

The Kconfig board choice only has only one option which is implicitly
enabled, therefore it is not necessary to set the symbol explicitly in
board defconfigs.

Signed-off-by: Maureen Helm <[email protected]>

Author: MaureenHelm

boards/arm/frdm_k22f/frdm_k22f_defconfig

@@ -9,7 +9,6 @@
 CONFIG_ARM=y
 CONFIG_SOC_MK22F51212=y
 CONFIG_SOC_SERIES_KINETIS_K2X=y
-CONFIG_BOARD_FRDM_K22F=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y

boards/arm/frdm_k64f/frdm_k64f_defconfig

@@ -3,7 +3,6 @@
 CONFIG_ARM=y
 CONFIG_SOC_MK64F12=y
 CONFIG_SOC_SERIES_KINETIS_K6X=y
-CONFIG_BOARD_FRDM_K64F=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y

boards/arm/frdm_k82f/frdm_k82f_defconfig

@@ -4,7 +4,6 @@ CONFIG_ARM=y
 CONFIG_CORTEX_M_SYSTICK=y
 CONFIG_SOC_SERIES_KINETIS_K8X=y
 CONFIG_SOC_MK82F25615=y
-CONFIG_BOARD_FRDM_K82F=y
 CONFIG_SERIAL=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y

boards/arm/frdm_kl25z/frdm_kl25z_defconfig

@@ -2,7 +2,6 @@
 
 CONFIG_ARM=y
 CONFIG_SOC_SERIES_KINETIS_KL2X=y
-CONFIG_BOARD_FRDM_KL25Z=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y

boards/arm/frdm_kw41z/frdm_kw41z_defconfig

@@ -3,7 +3,6 @@
 CONFIG_ARM=y
 CONFIG_SOC_MKW41Z4=y
 CONFIG_SOC_SERIES_KINETIS_KWX=y
-CONFIG_BOARD_FRDM_KW41Z=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y