samsung: dfu: Provide correct Vendor and Product IDs for UMS gadget

It is necessary to provide the same Vendor and Product IDs as the one in
the original Linux kernel code.

Without this change the USB mass storage gadget is not working with Windows7.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>