arm64: dts: add all hi6220 i2c nodes

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: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>