arm: mach-imx: Convert pr_warning to pr_warn

Use the more common pr_warn.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index 453f41a..65a0dc0 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -307,7 +307,7 @@
 	ret = gpio_request_array(mx31_3ds_sdhc1_gpios,
 				 ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
 	if (ret) {
-		pr_warning("Unable to request the SD/MMC GPIOs.\n");
+		pr_warn("Unable to request the SD/MMC GPIOs.\n");
 		return ret;
 	}
 
@@ -316,7 +316,7 @@
 			  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 			  "sdhc1-detect", data);
 	if (ret) {
-		pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
+		pr_warn("Unable to request the SD/MMC card-detect IRQ.\n");
 		goto gpio_free;
 	}