ARM: ep93xx: add LEDs and triggers to defconfig

The EP93xx has two designated LEDs (not always connected): a
green and a red one. These are registered in the core, so let's
enable the driver and some triggers.
Reviewed-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

arch/arm/configs/ep93xx_defconfig

@@ -99,6 +99,11 @@ CONFIG_USB_SERIAL_CONSOLE=y
 CONFIG_USB_SERIAL_PL2303=y
 CONFIG_MMC=y
 CONFIG_MMC_SPI=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_RTC_DRV_M48T86=y