Since version 4.8.0, OPTEE handles correctly RTC clock configuration for
STM32MP15 based boards. So the patch can be dropped.
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://github.com/openwrt/openwrt/pull/20953
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>