Chang TEST_TARGET from cfg to gtw

Because of the fact that this job deploys multi-node deployments
TEST_TARGET should be defined as gtw01 instead of cfg01 how it is
in AIO deployment.

Change-Id: Iddcb6cb96a482a8e079c1542e438f57facd9d6ed
Related-PROD: PROD-19226
diff --git a/jenkins/client/job/oscore/salt_virtual_models.yml b/jenkins/client/job/oscore/salt_virtual_models.yml
index d8a2d9d..9f79cf1 100644
--- a/jenkins/client/job/oscore/salt_virtual_models.yml
+++ b/jenkins/client/job/oscore/salt_virtual_models.yml
@@ -92,7 +92,7 @@
             TEST_TARGET:
               type: string
               description: Node to run tests
-              default: "cfg01*"
+              default: "gtw01*"
             TEST_CONCURRENCY:
               type: string
               description: How much test threads to run