ARM: SoC changes for v5.12

This is mostly 32-bit code for SoC platforms, and looks smaller
than any such branch I remember from previous kernels, as most
of this is now handled in other subsystems for modern platforms:

- Minor bugfixes and Kconfig updates for Tegra, Broadcom, i.MX,
  Renesas, and Samsung

- Updates to the MAINTAINERS listing for Actions, OMAP, and Samsung

- Samsung SoC driver updates to make them loadable modules

Signed-off-by: Arnd Bergmann <arnd@arndb.de>