Bug#960788: Intel SOF audio firmware packaging

[Barak A. Pearlmutter]

Oops! Thanks, fixed.
(I switched binary package names to match the packaging on salsa in
debian/control but neglected to make the consonant change in
debian/rules. I suppose debian/rules should grovel it out of
debian/control, according to the DRY principle. May do that, but
pushed trivial fix for now.)