RT11xx series has similar pin configuration peripheral to RT10xx, with
some differences in register layout. Create new pinctrl definition
header file, and reuse existing driver code for RT10xx.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
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>