configs: stm32mp13: Activate command stm32key

Activate the command stm32key with CONFIG_CMD_STM32KEY.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/configs/stm32mp13_defconfig b/configs/stm32mp13_defconfig
index 012882f..ab82480 100644
--- a/configs/stm32mp13_defconfig
+++ b/configs/stm32mp13_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_PROMPT="STM32MP> "
 CONFIG_STM32MP13x=y
 CONFIG_DDR_CACHEABLE_SIZE=0x10000000
+CONFIG_CMD_STM32KEY=y
 CONFIG_TARGET_ST_STM32MP13x=y
 CONFIG_ENV_OFFSET_REDUND=0x940000
 # CONFIG_ARMV7_NONSEC is not set