USB: rename choose_configuration

As it is global, give it a usb specific name in the global namespace.

Cc: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index e22ec7f..c52626c 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -23,7 +23,7 @@
 		unsigned int size);
 extern char *usb_cache_string(struct usb_device *udev, int index);
 extern int usb_set_configuration(struct usb_device *dev, int configuration);
-extern int choose_configuration(struct usb_device *udev);
+extern int usb_choose_configuration(struct usb_device *udev);
 
 extern void usb_kick_khubd(struct usb_device *dev);
 extern int usb_match_device(struct usb_device *dev,