USB: option driver: add PID for Vodafone-Huawei K3770

USB: option driver: add PID for Vodafone-Huawei K3770

commit 07b21fd83606263fe6f327b98774d51e13e502fd upstream.

This patch adds the product ID of Huawei's Vodafone K3770 mobile broadband
modem to option.c. This is necessary so that the driver gets loaded on demand
without the intervention of usb_modeswitch. This has the benefit of it becoming
available faster and also ensures that the option driver is not bound to a
network interface that should be claimed by cdc_ether.

Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>