ARM: versatile: enable the right LEDs

The Versatile now only has device tree boot support, and the
device tree version does not support CONFIG_LEDS_VERSATILE.
Instead select CONFIG_LEDS_SYSCON and MFD_SYSCON, so we can
get LEDs support from the same generic driver that drives
most other ARM reference boards.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/versatile_defconfig

@@ -54,6 +54,7 @@ CONFIG_SPI=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_PL061=y
 # CONFIG_HWMON is not set
+CONFIG_MFD_SYSCON=y
 CONFIG_FB=y
 CONFIG_FB_ARMCLCD=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -66,7 +67,7 @@ CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
-CONFIG_LEDS_VERSATILE=y
+CONFIG_LEDS_SYSCON=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_LEDS_TRIGGER_CPU=y