Add dts binding and pinctrl definition for flexio in twr_ke18f. This allows ke18f pinmux code to apply pinctrl selections for flexio. Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Add pinctrl groups for twr_ke18f Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>