Merge tag 'lpc18xx_dts_for_4.9_part2' of https://github.com/manabian/linux-lpc into next/dt

Pull "Device Tree clean up for LPC18xx platform" from Joachim Eastwood:

* Removal of skeleton.dtsi from the common armv7-m dtsi together
  with lpc18xx and efm32 platforms.

* Fix for unit address warnings from the dtc on lpc18xx/efm32.
  That is made possible with skeleton.dtsi gone.

* tag 'lpc18xx_dts_for_4.9_part2' of https://github.com/manabian/linux-lpc:
  ARM: dts: efm32: remove skeleton.dtsi include and fix unit address warnings
  ARM: dts: lpc18xx: remove skeleton.dtsi include and fix unit address warnings
  ARM: dts: armv7-m: remove skeleton.dtsi include