ARM: dts: imx: Make iomuxc node name generic

Node name should be generic, use "pinctrl" instead of "iomuxc"
for all i.MX6/7 SoCs.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
7 files changed