Airship: set org members as admin

That is for a member of metal3-io org to be able to trigger the
tests on a PR of someone who is not in the org. Without this, it
is not possible

Change-Id: If63688eedf13c64536f6eb94f2830de229a4991a
diff --git a/jjb/airship/job_feature_tests_ubuntu.yml b/jjb/airship/job_feature_tests_ubuntu.yml
index 13900bf..c1a3067 100644
--- a/jjb/airship/job_feature_tests_ubuntu.yml
+++ b/jjb/airship/job_feature_tests_ubuntu.yml
@@ -100,7 +100,7 @@
         github-hooks: True
         permit-all: False
         auto-close-on-fail: False
-        allow-whitelist-orgs-as-admins: False
+        allow-whitelist-orgs-as-admins: True
         white-list-target-branches:
           - 'master'
           - 'release-0.3'