ARM SoC fixes for 6.9, part 2

There are a lot of minor DT fixes for Mediatek, Rockchip, Qualcomm and
Microchip and NXP, addressing both build-time warnings and bugs found during
runtime testing. Most of these changes are machine specific fixups, but
there are a few notable regressions that affect an entire SoC:

 - The Qualcomm MSI support that was improved for 6.9 ended up being
   wrong on some chips and now gets fixed.

 - The i.MX8MP camera interface broke due to a typo and gets
   updated again.

The main driver fix is also for Qualcomm platofrms, rewriting an interface
in the QSEECOM firmware support that could lead to crashing the kernel
from a trusted application. The only other code changes are minor fixes
for Mediatek SoC drivers.
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