debian: Move abisip-find from osmo-bsc to its own package

In some scenarios osmo-bsc is not required, only abisip-find to do the
initial set-up of the BTS, so no need to install osmo-bsc with it.

Change-Id: If3d476a1bd67abcb9cff241ab5989db923873986
diff --git a/debian/control b/debian/control
index fae280a..c2627a1 100644
--- a/debian/control
+++ b/debian/control
@@ -36,6 +36,12 @@
 Depends: osmo-bsc (= ${binary:Version}), ${misc:Depends}
 Description: OsmoBSC: Osmocom's Base Station Controller for 2G circuit-switched mobile networks
 
+Package: abisip-find
+Architecture: any
+Multi-Arch: foreign
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Description: Command line utility to find ip.access compatible BTS
+
 Package: osmo-bsc-ipaccess-utils
 Architecture: any
 Multi-Arch: foreign