ARM: SoC fixes for v5.11

These are a small number of bug fixes that all came in before or during
the merge window, most for the omap platform:

 - One boot regression fix for Nokia N9 (OMAP3).

 - Two small defconfig changes for omap2, to reflect changes in drivers

 - Warning fixes for DT issues on omap2, picoxcell and bitmap SoCs.
   The picoxcell platform will be removed in v5.12, but fixing it
   first makes it easier to backport to the fix to stable kernels
   and get a clean build with new dtc versions

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