USB: gadget: file_storage: serial parameter even if not test mode
USB: gadget: file_storage: serial parameter even if not test mode

Moved the serial parameter handling code out of "#ifdef
CONFIG_USB_FILE_STORAGE_TEST".

This modifies Yann Cantin's commit "USB: Add a serial number
parameter to g_file_storage" module as per Alan Stern's request.

Signed-off-by: Michal Nazarewicz <fad68416efb2dcf953403756bf832194ca95d084@samsung.com>
Signed-off-by: Kyungmin Park <504c23c4986a3760712724894be3105092c27331@samsung.com>
Acked-by: Alan Stern <75ea6bb7bfc1186f92d26164de5f9268c9a45b59@rowland.harvard.edu>
Tested-by: Anand Gadiyar <91e19066a3bfb79f58158f6450f17226f60f5cee@ti.com>
Cc: David Brownell <e543181633fc0fc2787945ef377537d9112d0c96@pacbell.net>
Cc: Yann Cantin <24f975c1927987b699d5c6acd52d5c1f475cff53@laposte.net>


TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs