usb: gadget: Rename audio function to uac1

The extant USB-Audio function driver complies to UAC_1 spec.
So name the files accordingly, paving way for inclusion of
a new UAC_2 specified driver.

Signed-off-by: Yadi Brar <yadi.brar01@gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index 9d89ae47..056a2d9 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -14,7 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/utsname.h>
 
-#include "u_audio.h"
+#include "u_uac1.h"
 
 #define DRIVER_DESC		"Linux USB Audio Gadget"
 #define DRIVER_VERSION		"Dec 18, 2008"
@@ -33,8 +33,8 @@
 #include "config.c"
 #include "epautoconf.c"
 
-#include "u_audio.c"
-#include "f_audio.c"
+#include "u_uac1.c"
+#include "f_uac1.c"
 
 /*-------------------------------------------------------------------------*/