Merge tag 'at91-dt3' of git://github.com/at91linux/linux-at91 into next/dt

Merge tag 'at91-dt3' of git://github.com/at91linux/linux-at91 into next/dt

Pull "More AT91 DT material for 3.18" from Nicolas Ferre:

- specify DMA channels for USART on sama5d3 and choose peripherals
  that will use them on the EK boards
- SSC update for audio on at91sam9rl and at91sam9g20
- addition of the NFC clock and new pinctrl compatible string
  to use enhancements that will land in drivers during this release
- several new nodes and fixes

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* tag 'at91-dt3' of git://github.com/at91linux/linux-at91:
  ARM: at91/dt: at91sam9m10g45ek add rtc node
  ARM: at91/dt: sama5d3: use new pinctrl compatible string
  ARM: at91/dt: sama5d3: add the nfc clock
  ARM: at91/dt: declare sckc node on at91sam9g45
  ARM: at91/dt: Fix typo regarding can0_clk
  ARM: at91/dt: at91sam9g20: switch ssc compatible string
  ARM: at91/dt: at91sam9rl: switch ssc compatible string
  ARM: at91: sama5d3xek: reserve dma channel for audio
  ARM: at91: sama5d3: add usart dma configurations