Fix osmclient repository used when installing

Change-Id: I40dd4066ff7eba0d9e9dc1d8d6cc66b5535a5629
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

installers/full_install_osm.sh

@@ -1146,7 +1146,7 @@ OSM_STACK_NAME=osm
 NO_HOST_PORTS=""
 DOCKER_NOBUILD=""
 REPOSITORY_KEY="OSM%20ETSI%20Release%20Key.gpg"
-REPOSITORY_BASE="http://osm-download.etsi.org/repository/osm/debian"
+REPOSITORY_BASE="https://osm-download.etsi.org/repository/osm/debian"
 WORKDIR_SUDO=sudo
 OSM_WORK_DIR="/etc/osm"
 OSM_DOCKER_TAG=latest