full_install_osm.sh: fix k8s installation, node must be tainted before juju_addk8s and install_helm

Change-Id: I1c14736ad832f184f7a8f4f9bfa389705511c558
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
(cherry picked from commit ac5bd33c65d4a8a108efd788022d1ef2a994945b)
1 file changed