Debian: Make sure we include osmo-hlr-db-tool in the package

Change-Id: Ia67ae6d4b1af982db8c342f2d8fd29deb83ccaff
diff --git a/debian/osmo-hlr.install b/debian/osmo-hlr.install
index 114df0b..0e2a1c4 100644
--- a/debian/osmo-hlr.install
+++ b/debian/osmo-hlr.install
@@ -1,2 +1,3 @@
 /usr/bin/osmo-hlr
+/usr/bin/osmo-hlr-db-tool
 /usr/share/doc/osmo-hlr/hlr.sql