USB: usb-storage: added missing MODULE_LICENSE("GPL") for usb-storage ums-* modules

The lack of a MODULE_LICENSE macro in ums-* subdrivers prevented them
from loading. Needs to be applied after Alan Stern's usb-storage
subdriver separation patchset. Also added missing MODULE_DESCRIPTION and
MODULE_AUTHOR entries.

Signed-off-by: Maciej Grela <maciej.grela@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c
index cfb8e60..7953d93 100644
--- a/drivers/usb/storage/karma.c
+++ b/drivers/usb/storage/karma.c
@@ -28,6 +28,10 @@
 #include "transport.h"
 #include "debug.h"
 
+MODULE_DESCRIPTION("Driver for Rio Karma");
+MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>, Keith Bennett <keith@mcs.st-and.ac.uk>");
+MODULE_LICENSE("GPL");
+
 #define RIO_PREFIX "RIOP\x00"
 #define RIO_PREFIX_LEN 5
 #define RIO_SEND_LEN 40