[needs-packaging] linux-firmware-dragonboard410

[Łukasz Zemczak]

To be able to build classic Ubuntu images for the Dragonboard 410c platform (just as we do for ubuntu-core), we need to package some of the firmware pre-built proprietary binaries. For that purpose I have created linux-firmware-dragonboard410 (similar to our current linux-firmware-raspi2 package) that carries the most needed ones. The expectation is that these binaries are enough to get a booting system.

Since we don't have a working classic gadget tree yet, these are not completely tested - but content-wise they seem sane comparing with the core gadget.