Switch to automatic firmware loading to handle regional variants of the device automatically.
[ci:skip-build] Already successfully built on CI
[ci:ignore-count] [ci:skip-vercheck] needed for the postmarketos-ui-* packages in this series [ci:skip-build] already built ui-* packages in CI, and device pacakges are just trivial deviceinfo change (manually built some just to verify)
[ci:skip-vercheck]: No meaningful change here
