USB: gadget code switches to pr_err() and friends

We now have pr_err(), pr_warning(), and friends ... start using
them in the gadget stack instead of printk(KERN_ERR) and friends.
This gives us shorter lines and somewhat increased readability.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h
index 832ab82..9fb0b1e 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -551,9 +551,9 @@
 #define VDBG(stuff...)	do{}while(0)
 #endif
 
-#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
-#define WARN(stuff...)		printk(KERN_WARNING "udc: " stuff)
-#define INFO(stuff...)		printk(KERN_INFO "udc: " stuff)
+#define ERR(stuff...)		pr_err("udc: " stuff)
+#define WARN(stuff...)		pr_warning("udc: " stuff)
+#define INFO(stuff...)		pr_info("udc: " stuff)
 
 /*-------------------------------------------------------------------------*/