Latest tag 0.3.0 was created in a release branch instead of master. As a
result, git describe doesn't show them. Let's instead reuse git command used in
osmo-ci to get latest tag from tag list when OBS latest repository is
built.
Change-Id: I3e461d4270b5e6d4c42126df4deef5651dca1e27
In AC_INIT(), it still stated openbts. Let's clean this up and use
the same method of version generation that we use in all other osmocom
projects, too.
Change-Id: Ie7ae0585955aebdc3950b1dd8bff0d1fff3be212