ARM: SoC updates

The code changes are mostly for 32-bit platforms and include:

- Lots of updates for the Nvidia Tegra platform, including
  cpuidle, pmc, and dt-binding changes

- Microchip at91 power management updates for the recently added
  sam9x60 SoC

- Treewide setup_irq deprecation by afzal mohammed

- STMicroelectronics stm32 gains earlycon support

- Renesas platforms with Cortex-A9 can now use the global timer

- Some TI OMAP2+ platforms gain cpuidle support

- Various cleanups for the i.MX6 and Orion platforms, as well as
  Kconfig files across all platforms

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