Merge tag 'at91-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/multiplatform

Merge "at91: multiplatform for 4.1 #1" from Nicolas Ferre:

This is the multi-platform support for AT91:
- reworked arch/arm/mach-at91/Kconfig and arch/arm/Kconfig to switch to
  multi-platform
- updated at91_dt_defconfig
- continue the cleanup of unneeded files and code chunks

* tag 'at91-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: (61 commits)
  ARM: at91: drop AT91_TIMER_HZ
  ARM: at91: remove hardware.h
  ARM: at91: remove SoC headers
  ARM: at91: remove useless mach/cpu.h
  ARM: at91: remove unused headers
  ARM: at91: switch at91_dt_defconfig to multiplatform
  ARM: at91: switch to multiplatform
  ARM: at91: remove useless include
  clocksource: atmel-st: remove mach/hardware dependency
  clocksource: atmel-st: use syscon/regmap
  ARM: at91: time: move the system timer driver to drivers/clocksource
  ARM: at91: properly initialize timer
  ARM: at91: at91rm9200: remove deprecated arm_pm_restart
  watchdog: at91rm9200: implement restart handler
  watchdog: at91rm9200: use the system timer syscon
  mfd: syscon: Add atmel system timer registers definition
  ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
  ARM: at91: remove old setup
  ARM: at91: sama5d4: remove useless map_io
  ARM: at91: sama5 use SoC detection infrastructure
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>