Fix the following warning:

| drivers/usb/storage/alauda.c:142:22: warning: symbol
|	'alauda_usb_ids' was not declared. Should it
|	be static?
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>