ARM: config: keystone: enable led support

The Keystone GPIO functionality is ready for use, so LED support can be
enabled in config.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

arch/arm/configs/keystone_defconfig

@@ -182,3 +182,11 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_DAVINCI=y
+CONFIG_LEDS_CLASS=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_GPIO=y