Merge branch 'at91-3.4-cleanup2-DT2+USB' of git://github.com/at91linux/linux-at91 into next/dt

* 'at91-3.4-cleanup2-DT2+USB' of git://github.com/at91linux/linux-at91:
  ARM: at91: sam9g20 udc add dt support
  USB: at91: Device udc add dt support