Don't apply.
I didn't notice this until I sent the patch. But we already have the
device in the table, using interface number based matching:
{QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */
That should be good enough since the interface number is matching the
02/06/ff function.
Bjørn
