ARM64: defconfig: enable the leds-pwm driver and default-on trigger

This enables the leds-pwm driver to support LEDs which are PWM-powered
(and thus dimmable). Additionally we have to enable the "default-on"
trigger - this was not required before because the gpio-leds driver has
a separate "default-state" property which can be used to enable the LED
by default.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/configs/defconfig

@@ -401,8 +401,10 @@ CONFIG_MMC_SUNXI=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_PWM=y
 CONFIG_LEDS_SYSCON=y
 CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_LEDS_TRIGGER_CPU=y
 CONFIG_RTC_CLASS=y