arm64: dts: hi6220: add pinctrl for uarts and enable them

Add pinctrl for uart2 uart3 and uart4. Enable uart1 uart2 and uart3.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2 files changed