imx8: imx8-pins: add i.MX8QM

Add i.MX8QM entry

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8/imx8-pins.h b/arch/arm/include/asm/arch-imx8/imx8-pins.h
index dcced10..2130298 100644
--- a/arch/arm/include/asm/arch-imx8/imx8-pins.h
+++ b/arch/arm/include/asm/arch-imx8/imx8-pins.h
@@ -8,6 +8,8 @@
 
 #if defined(CONFIG_IMX8QXP)
 #include <dt-bindings/pinctrl/pads-imx8qxp.h>
+#elif defined(CONFIG_IMX8QM)
+#include <dt-bindings/pinctrl/pads-imx8qm.h>
 #else
 #error "No pin header"
 #endif