fsl/usb: Add support for USB controller version 2.4

Add support for USB controller version 2.4

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index ccfc4bb..38b5660 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -23,6 +23,7 @@
 #define FSL_USB_VER_OLD		0
 #define FSL_USB_VER_1_6		1
 #define FSL_USB_VER_2_2		2
+#define FSL_USB_VER_2_4		3
 
 #include <linux/types.h>