ARM: dts: imx7d-pinfunc: add gpio1 pad iomux settings

- Add imx7 SoC GPIO1 pad iomuxc settings
  <mux_reg conf_reg input_reg mux_mode input_val>
- Fix UART input select daisy chain setting values
Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>