Add regulators to the scpsys binding.

Move the include of the reset contoller to include/dt-bindings/reset.

Add basic support for mt2701 SoC and evaluation board.

* tag 'v4.4-next-dts' of https://github.com/mbgg/linux-mediatek:
  dt-bindings: soc: Add supplies for Mediatek SCPSYS unit
  ARM: mediatek: DT: Move reset controller constants into common location
  ARM: dts: mediatek: add MT2701 basic support
  Document: DT: Add bindings for mediatek MT2701 SoC Platform
Signed-off-by: Olof Johansson <olof@lixom.net>