configs: rockchip: enable gpio-leds driver for Radxa boards

Basically, Radxa's boards are intended to turn LEDs on at U-Boot.
enable gpio-leds driver and led command.

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/radxa-e25-rk3568_defconfig b/configs/radxa-e25-rk3568_defconfig
index 99f9e1c..4df594d 100644
--- a/configs/radxa-e25-rk3568_defconfig
+++ b/configs/radxa-e25-rk3568_defconfig
@@ -44,6 +44,8 @@
 CONFIG_SPL_CLK=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
 CONFIG_MISC=y
 CONFIG_SUPPORT_EMMC_RPMB=y
 CONFIG_MMC_DW=y