Remove FriendlyElec vendor "driver" patch in mainline

https://github.com/armbian/build/blob/efa936525c04f4a087489e6e0a2a6e6172b5a20f/patch/kernel/archive/rockchip64-6.3/add-maker-friendlyarm.patch

Why does this exist? Can this functionality not be done in user space?

Raised by: https://github.com/Tonymac32

https://github.com/armbian/build/issues/5348