fixed salt-bootstrap.sh script path in build mirror image pipeline

Change-Id: Iee9bc83a54ee69cb97bfeccdc87c37f9ab961f36
diff --git a/build-mirror-image.groovy b/build-mirror-image.groovy
index 5616870..2b3f312 100644
--- a/build-mirror-image.groovy
+++ b/build-mirror-image.groovy
@@ -73,7 +73,7 @@
                 sh "envsubst < salt-bootstrap.sh > salt-bootstrap.sh.temp;mv salt-bootstrap.sh.temp salt-bootstrap.sh; cat salt-bootstrap.sh"
             }
 
-            openstackServer = openstack.runOpenstackCommand("openstack server create --key-name mcp-offline-keypair-${dateTime} --availability-zone ${VM_AVAILABILITY_ZONE} --image ${VM_IMAGE} --flavor ${VM_FLAVOR} --nic net-id=${VM_NETWORK_ID},v4-fixed-ip=${VM_IP} --user-data mcp-offline-mirror/scripts/salt-bootstrap.sh mcp-offline-mirror-${dateTime}", rcFile, openstackEnv)
+            openstackServer = openstack.runOpenstackCommand("openstack server create --key-name mcp-offline-keypair-${dateTime} --availability-zone ${VM_AVAILABILITY_ZONE} --image ${VM_IMAGE} --flavor ${VM_FLAVOR} --nic net-id=${VM_NETWORK_ID},v4-fixed-ip=${VM_IP} --user-data salt-bootstrap.sh mcp-offline-mirror-${dateTime}", rcFile, openstackEnv)
             sleep(60)
 
             retry(VM_IP_RETRIES, VM_IP_DELAY){