ARM: SoC: late updates

This is some material that we picked up into our tree late, or that had
more complex dependencies on more than one topic branch that makes sense
to keep separately.

 - TI support for secure accelerators and hwrng on OMAP4/5

 - TI camera changes for dra7 and am437x and SGX improvement due to better
   reset control support on am335x, am437x and dra7

 - Davinci moves to proper clocksource on DM365, and regulator/audio
   improvements for DM365 and DM644x eval boards