Add ability to disable report and change testrail plan name prefi

Change-Id: Ib97bc66ed229292bebc69348d316dee2bd6956ce
Related-PROD: PROD-28588
diff --git a/src/com/mirantis/system_qa/SharedPipeline.groovy b/src/com/mirantis/system_qa/SharedPipeline.groovy
index 4e819ae..ad52129 100644
--- a/src/com/mirantis/system_qa/SharedPipeline.groovy
+++ b/src/com/mirantis/system_qa/SharedPipeline.groovy
@@ -561,7 +561,8 @@
   def testPlanDesc = env.LAB_CONFIG_NAME
   def testrailURL = "https://mirantis.testrail.com"
   def testrailProject = "Mirantis Cloud Platform"
-  def testPlanName = "[MCP-Q2]System-${MCP_VERSION}-${new Date().format('yyyy-MM-dd')}"
+  def testPlanNamePrefix = env.TEST_PLAN_NAME_PREFIX ?: "[MCP-Q2]System"
+  def testPlanName = "${testPlanNamePrefix}-${MCP_VERSION}-${new Date().format('yyyy-MM-dd')}"
   def testrailMilestone = "MCP1.1"
   def testrailCaseMaxNameLenght = 250
   def jobURL = env.BUILD_URL