ARM: SoC fixes for 6.0

These are the expected fixes for the SoC tree. I have let the
patches pile up a little too long, so this is bigger than I
would have liked.

 - Minor build fixes for Broadcom STB and NXP i.MX8M SoCs as well\
   as TEE firmware

 - Updates to the MAINTAINERS file for the PolarFire SoC

 - Minor DT fixes for Renesas White Hawk and Arm Versatile and
   Juno platforms

 - A fix for a missing dependnecy in the NXP DPIO driver

 - Broadcom BCA fixes to the newly added devicetree files

 - Multiple fixes for Microchip AT91 based SoCs, dealing with
   self-refresh timings and regulator settings in DT

 - Several DT fixes for NXP i.MX platforms, dealing with incorrect
   GPIO settings, extraneous nodes, and a wrong clock setting.