imx6ul-kontron: Add DIP switch gpios
Board revision 195x 1470 has DIP switches and lacks uart3. So this change improves support for 195x 1470 design and drops support for the deprecated design 195x 1461.
Board revision 195x 1470 has DIP switches and lacks uart3. So this change improves support for 195x 1470 design and drops support for the deprecated design 195x 1461.