I2C: add i2c support for Pantheon platform

Add i2c support to dkb board with pantheon soc.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
6 files changed