iMX.RT parts use a GPR register for some pinmux settings. Update pinctrl driver to support this GPR register definition. Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Add pinctrl driver for rt1xxx Signed-off-by: Hake Huang <hake.huang@oss.nxp.com> Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>