Add missing OS_PROJECT_NAME parameter to test Drivetrain pipeline.

Change-Id: Id555958f3b0938b67b1232af88fda281f3c21e5a
diff --git a/test-drivetrain.groovy b/test-drivetrain.groovy
index f268d97..43db899 100644
--- a/test-drivetrain.groovy
+++ b/test-drivetrain.groovy
@@ -49,6 +49,7 @@
             stage('Trigger deploy job') {
                 mcpEnvJob = build(job: "create-mcp-env", parameters: [
                     [$class: 'StringParameterValue', name: 'OS_AZ', value: 'mcp-mk'],
+                    [$class: 'StringParameterValue', name: 'OS_PROJECT_NAME', value: 'mcp-mk'],
                     [$class: 'StringParameterValue', name: 'STACK_NAME', value: 'jenkins-drivetrain-test-' + currentBuild.number],
                     [$class: 'StringParameterValue', name: 'STACK_INSTALL', value: 'core,kvm,cicd'],
                     [$class: 'BooleanParameterValue', name: 'STACK_FULL', value: true],