pinctrl: at91: Add support to align with Linux Devicetree

U-Boot pinctrl driver expects a reg property explicitly unlike linux.
To align the DT of U-boot with the Linux, reg property is also arrvied
from child GPIO bank nodes when configured under the pinctrl node.

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
1 file changed