ARM: SoC fixes for 6.1, part 3

Another set of devicetree and code changes for SoC platforms,
notably:

 - DT schema warning fixes for i.MX

 - Functional fixes for i.MX tqma8mqml-mba8mx USB and
   i.MX8M OCOTP

 - MAINTAINERS updates for Hisilicon and RISC-V, documenting
   which RISC-V SoC specific patches will now get merged through
   the SoC tree in the future.

 - A code fix for at91 suspend, to work around broken hardware

 - A devicetree fix for lan966x/pcb8291 LED support

 - Lots of DT fixes for Qualcomm SoCs, mostly fixing minor
   problems like incorrect register sizes and schema warnings.
   One fix makes the UFS controller work on sc8280xp, and
   six fixes address the same regulator problem in a variety
   of platforms.