debian: We require libdbi-sqlite3 for running the tests

The tests are not broken but the db test fails when the dbi driver
is not installed. Make it a build time depedency.
diff --git a/debian/control b/debian/control
index a2d9efe..d9b3473 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@
 Section: net
 Priority: optional
 Maintainer: Harald Welte <laforge@gnumonks.org>
-Build-Depends: debhelper (>= 7.0.0~), autotools-dev, pkg-config, libgtp-dev, libosmocore-dev, libosmo-sccp-dev, libdbi-dev, dh-autoreconf, libosmo-abis-dev
+Build-Depends: debhelper (>= 7.0.0~), autotools-dev, pkg-config, libgtp-dev, libosmocore-dev, libosmo-sccp-dev, libdbi-dev, dh-autoreconf, libosmo-abis-dev, libdbd-sqlite3
 Standards-Version: 3.8.4
 Homepage: http://openbsc.osmocom.org/
 Vcs-Git: git://bs11-abis.gnumonks.org/openbsc.git
diff --git a/debian/rules b/debian/rules
index e82ba91..cac108d 100755
--- a/debian/rules
+++ b/debian/rules
@@ -24,5 +24,3 @@
 	echo $(VERSION) > openbsc/.tarball-version
 	dh_auto_configure --sourcedirectory=openbsc -- --enable-nat --enable-osmo-bsc
 
-override_dh_auto_test:
-#	tests are broken...