dts: rockchip: rk3562: enable pinctrl config for sdmmc0

Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
Change-Id: Ia3f9c268cc1e97a6f6e7e50f6f2b8967137a574a

rockchip: Add rk3562 support

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I4cb19c26f45540aec565bd9bb94da520133893fa