Update osm-common and n2vc pip dependencies

Change-Id: I80c8c0d61b23b599ddacf8cf5422653401e5985a
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/requirements-dev.in b/requirements-dev.in
index 733a1b3..cc79ac6 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
--e git+https://osm.etsi.org/gerrit/osm/common.git@master#egg=osm-common
--r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=master
+-e git+https://osm.etsi.org/gerrit/osm/common.git@v16.0#egg=osm-common
+-r https://osm.etsi.org/gitweb/?p=osm/common.git;a=blob_plain;f=requirements.txt;hb=v16.0
 
--e git+https://osm.etsi.org/gerrit/osm/N2VC.git@master#egg=n2vc
--r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=master
+-e git+https://osm.etsi.org/gerrit/osm/N2VC.git@v16.0#egg=n2vc
+-r https://osm.etsi.org/gitweb/?p=osm/N2VC.git;a=blob_plain;f=requirements.txt;hb=v16.0