ARM: dts: mvebu: Add Ctera C-200 V2 board

Ctera C200 V2 is armada-370 based 2-Bay NAS.

Hardware:
  - SoC: Marvell 88F6707-A1 ARMv7 Processor 1,2GHz (ARMADA 370 SoC)
  - Ram: 1GB (2x Nanya NT5CC512M8DN-D1)
  - NAND Flash: 256MB (ESMT F59L2G81A-25T)
  - Lan: 1x GBE (Marvell 88E1318-NNB2)
  - Storage: 2x SATA HDD 3.5" Slot
  - USB: 2x USB 3.0 port (Renesas uPD720202)
  - Console: Internal J3 connector (1: Vcc, 2: Rx, 3: Tx, 4: GND)
  - LEDs: 13x GPIO controlled
  - Buttons: 2x GPIO controlled

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>