Merge tag 'v4.14-next-dts32-2' of https://github.com/mbgg/linux-mediatek into next/dt

Pull "Mediatek: 32-bit DTS updates for v4.15" from Matthias Brugger:

- mt7623 update nodes to binding description
- mt2701 add display pwn nodes
- mt2701 update audio node description

* tag 'v4.14-next-dts32-2' of https://github.com/mbgg/linux-mediatek:
  arm: dts: mt7623: remove unused compatible string for pio node
  arm: dts: mt7623: update usb related nodes
  arm: dts: mt7623: update crypto node
  arm: dts: mediatek: update audio node for mt2701 and mt7623
  arm: dts: mt2701: enable display pwm backlight
  arm: dts: mt2701: add pwm backlight device node