imx8m: add pin header for i.MX8MM

Add pin header file for i.MX8MM

To IMX8MM_PAD_NAND_WE_B_USDHC3_CLK, IOMUX_CONFIG_SION needs to be
selected.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
1 file changed