Feature 11001: Robot framework linting for E2E tests

This change includes robotframework-lint and robocop checks which will
improve code maintenance.

In addition, all references to ROBOT_DEVOPS_FOLDER have been properly
replaced in all testsuites.

Change-Id: I6efb306b51302d0400240bcd57435f0990021415
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/run_test.sh b/robot-systest/run_test.sh
index 1ebe21f..e96e17a 100755
--- a/robot-systest/run_test.sh
+++ b/robot-systest/run_test.sh
@@ -228,7 +228,7 @@
 fi
 
 if [[ -n "${TEST}" ]]; then
-    robot -d ${ROBOT_DEVOPS_FOLDER}/reports --tagstatinclude "cluster-*" -i ${TEST} ${ROBOT_DEVOPS_FOLDER}/testsuite/
+    robot -d ${ROBOT_DEVOPS_FOLDER}/reports --tagstatinclude "cluster_*" -i ${TEST} ${ROBOT_DEVOPS_FOLDER}/testsuite/
 else
     echo "No test was provided. Exiting..."
 fi