[X SRU][PATCH] UBUNTU: SAUCE: USB: serial: qcserial: add Dell DW5818, DW5819

[Shrirang Bagul]

BugLink: http://bugs.launchpad.net/bugs/1721455

[Fix]
Dell Wireless 5819/5818 devices are re-branded Sierra Wireless MC74 series which will by default boot with vid 0x413c and pid's 0x81cf, 0x81d0, 0x81d1,0x81d2.

This patch has already been submitted upstream, reviewed and applied by linux-usb serial maintainer.
(See: https://marc.info/?l=linux-usb&m=150703788328773&w=2)

However, to meet Dell Edge Gateway 300x delivery schedule, a sauce patch is being submitted to Xenial SRU.

[Impact]
The patch adds USB VID's/PID's to the usb qcserial driver. Regression potential is minimal.

[Testing]
A test kernel (snap) with this patch was verified by the ODM, no issues were reported.