debian/changelog: change last release for unreleased to unstable

Otherwise osmo-release.mk overrides contents of last release.

Change-Id: Ife77f6ddd45465b0a5fce80e51e3e64428787b91
1 file changed
tree: e1f07d85eb5ef491884207638e372fc42042b13e
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap