ARM: imx: Fix trivial typo in comments

change 'mutliple' to 'multiple'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/mach-imx/iomux-v3.h b/arch/arm/mach-imx/iomux-v3.h
index 5f4bbf1..f79e165 100644
--- a/arch/arm/mach-imx/iomux-v3.h
+++ b/arch/arm/mach-imx/iomux-v3.h
@@ -128,7 +128,7 @@
 int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
 
 /*
- * setups mutliple pads
+ * setups multiple pads
  * convenient way to call the above function with tables
  */
 int mxc_iomux_v3_setup_multiple_pads(const iomux_v3_cfg_t *pad_list,