This patch adds all I2C nodes for the Hi6220 SoC. This hi6220 Soc
use this I2C IP of Synopsys Designware for HiKey board.
Signed-off-by: NXinwei Kong <kong.kongxinwei@hisilicon.com>
Signed-off-by: NChen Feng <puck.chen@hisilicon.com>
Signed-off-by: NWei Xu <xuwei5@hisilicon.com>