ARM: SoC fixes for 5.16, part 4

This is my last set of fixes for 5.16, including

 - multiple code fixes for the op-tee firmware driver

 - Two patches for allwinner SoCs, one fixing the phy mode on
   a board, the other one fixing a driver bug in the "RSB"
   bus driver. This was originally targetted for 5.17, but
   seemed worth moving to 5.16.

 - Two small fixes for devicetree files on i.MX platforms,
   resolving problems with ethernet and i2c.