Update installer shell scripts to set env vars after getopts

Change-Id: I656df0d03d986928768d0f108719cf16002c8f40
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/install_helm_client.sh b/installers/install_helm_client.sh
index fdaeb79..427a2e1 100755
--- a/installers/install_helm_client.sh
+++ b/installers/install_helm_client.sh
@@ -63,11 +63,12 @@
     esac
 done
 
+DEBUG_INSTALL=${DEBUG_INSTALL:-}
+OSM_DEVOPS=${OSM_DEVOPS:-}
+echo "DEBUG_INSTALL=$DEBUG_INSTALL"
+echo "OSM_DEVOPS=$OSM_DEVOPS"
+
 source $OSM_DEVOPS/common/logging
 source $OSM_DEVOPS/common/track
 
-echo "DEBUG_INSTALL=$DEBUG_INSTALL"
-echo "DEFAULT_IP=$DEFAULT_IP"
-echo "OSM_DEVOPS=$OSM_DEVOPS"
-
 install_helm_client