arm64: defconfig: Enable RTC_DRV_HYM8563

RTC HYM8563 used in the ARM64 Rockchip SoC's SDIO power
sequence enablement.

Enable it as module.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20201023181814.220974-1-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/configs/defconfig

@@ -815,6 +815,7 @@ CONFIG_EDAC=y
 CONFIG_EDAC_GHES=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=m
+CONFIG_RTC_DRV_HYM8563=m
 CONFIG_RTC_DRV_MAX77686=y
 CONFIG_RTC_DRV_RK808=m
 CONFIG_RTC_DRV_PCF85363=m