This patch adds basic support for the Marvell Armada 3700 DB-88F3720
development board. Supported are the following interfaces:
- UART
- SPI (incl. SPI NOR)
- I2C
- Ethernet

Signed-off-by: Stefan Roese
Cc: Nadav Haklai
Cc: Kostya Porotchkin
Cc: Wilson Ding
Cc: Victor Gu
Cc: Hua Jing
Cc: Terry Zhou
Cc: Hanna Hawa
Cc: Haim Boot