Linux drivers for XMM 7560 LTE

Hello,

I've been trying to figure out how to get the XMM 7560 working on my HP Spectre Folio's Ubuntu install. As far as I can tell the drivers would end up implemented here, but it's not done yet.

Output of `lspci -nnk`:
```
6d:00.0 Wireless controller [0d40]: Intel Corporation Device [8086:7560] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:8507]
```
I figure this is closely related to https://github.com/intel/linux-intel-lts/issues/7 but it seems sensible to track it separately.

Alternately, Is there enough publicly available information on the XMM 7560 to write a driver for it? Low level PCI interface docs? Source for the windows driver? It's been a while since I've written a device driver, but as long as I don't have to reverse engineer the thing from assembly I'd be willing to try.