Revert "Enable CONFIG_RTC_DRV_RX8025"

This reverts commit 9f1733e.

Change-Id: I9f155d683a1d923715f121976af24c2d6d896c66

Author: asus-leslieyu

arch/arm/configs/tinker_board_defconfig

@@ -772,7 +772,6 @@ CONFIG_RTC_DRV_HYM8563=y
 CONFIG_RTC_DRV_RK808=y
 CONFIG_RTC_DRV_DS3232=y
 CONFIG_RTC_DRV_DS1307=y
-CONFIG_RTC_DRV_RX8025=y
 CONFIG_RTC_DRV_TPS65910=y
 CONFIG_DMADEVICES=y
 CONFIG_PL330_DMA=y