Change default credentials for run-openscap-xccdf-evaluation

Change default credentials according to other jobs to
salt-qa-credentials

Change-Id: Ia44d423684dc101fbd2ab2a90b0e180f527ee0b4
diff --git a/jenkins/client/job/security/openscap.yml b/jenkins/client/job/security/openscap.yml
index fae68ab..7bedf61 100644
--- a/jenkins/client/job/security/openscap.yml
+++ b/jenkins/client/job/security/openscap.yml
@@ -30,7 +30,7 @@
               default: ""
             SALT_MASTER_CREDENTIALS:
               type: string
-              default: "salt"
+              default: "salt-qa-credentials"
             TARGET_SERVERS:
               type: string
               default: '*'