Add missing github-organization for OMEC jobs

Change-Id: Ida14f0d4c24d4c274add3894ccb2bd8cd145d1f3
diff --git a/jjb/omec-ci.yaml b/jjb/omec-ci.yaml
index 5e76aee..60f86cd 100644
--- a/jjb/omec-ci.yaml
+++ b/jjb/omec-ci.yaml
@@ -7,6 +7,7 @@
 - project:
     name: omec
     build-node: 'intel-102'
+    github-organization: 'omec-project'
 
     github_pr_auth_id: '64fe2b1a-b33a-4f13-8442-ad8360434003'
     github_pr_org_list: