debian/control: allow simlutanous install of updated -dev packages
This allows a single source package to be built against all variants of oFono at the same time.
Bug: ubports/development/core/ofono-apndb-plugin#1 (closed)
See: ofono-sailfish!16 (merged)
See: ubports/development/core/ofono-ubports!8 (merged)
Edited by Ratchanan Srirattanamet