Merge tag 'clk-2022.04-next' of https://source.denx.de/u-boot/custodians/u-boot-clk...

Merge tag 'clk-2022.04-next' of https://source.denx.de/u-boot/custodians/u-boot-clk into next

Clock patches for u-boot/next

This is mostly cleanups/consolidations. clk_free is made to return void, and the
CCF wrappers present in almost every CCF clock are consolidated. I would
particularly like to have the latter upstream, since there are at least two
series adding support for new CCF drivers (imx8mq and imxrt1170) which can
benefit from these commits.

I had to fix up the last commit since I missed an include for at91.

CI: https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/11521