arm64: defconfig: enable CONFIG_INPUT_HISI_POWERKEY for HiKey

Signed-off-by: NGuodong Xu <guodong.xu@linaro.org>
Signed-off-by: NWei Xu <xuwei5@hisilicon.com>

arch/arm64/configs/defconfig

@@ -154,6 +154,7 @@ CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_PM8941_PWRKEY=y
+CONFIG_INPUT_HISI_POWERKEY=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_AMBAKMI=y
 CONFIG_LEGACY_PTY_COUNT=16