Merge tag 'iwlwifi-next-for-kalle-2018-04-26' of git://git.kernel.org/pub/scm/linux...

Second batch of iwlwifi patches for 4.18

* Some preparations for new hardware;
* A workaround to rescan the bus for the rare situation when older
  devices become irresponsive,
* Hardening of the firmware loading code to avoid issues with
  corrupted files;
* A few clean-ups and bugfixes.