arm64: rk3326_linux_defconfig: add the missing RK8xx configigure

This patch enables the gpio and powerkey configure for Rockchip
RK8xx PMIC.

Change-Id: Iab4f9303922387ae6e412f06aa098cdf53331e87
Signed-off-by: Caesar Wang <wxt@rock-chips.com>

Author: Caesar-github

arch/arm64/configs/rk3326_linux_defconfig

@@ -160,6 +160,7 @@ CONFIG_TOUCHSCREEN_GT1X=y
 CONFIG_ROCKCHIP_REMOTECTL=y
 CONFIG_ROCKCHIP_REMOTECTL_PWM=y
 CONFIG_INPUT_MISC=y
+CONFIG_INPUT_RK8XX_PWRKEY=y
 CONFIG_INPUT_UINPUT=y
 CONFIG_INPUT_GPIO=y
 # CONFIG_SERIO is not set
@@ -188,6 +189,7 @@ CONFIG_PTP_1588_CLOCK=y
 CONFIG_DEBUG_GPIO=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_GENERIC_PLATFORM=y
+CONFIG_GPIO_RK8XX=y
 CONFIG_BATTERY_SBS=y
 CONFIG_CHARGER_GPIO=y
 CONFIG_CHARGER_BQ24735=y