Revert "Refactor!: Update JJB code to comply 5.x"

This reverts commit 3bcdb1f34221f271df9da070c693efabba5ac004.
The CR was merged by mistake reverting this until the next
official global-jjb release.

Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: I5888b9af7c6181099b1e1aeedfe215cd8a5cac30
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
diff --git a/jjb/ric-plt-sdlgo/ric-plt-sdlgo.yaml b/jjb/ric-plt-sdlgo/ric-plt-sdlgo.yaml
index 60ae371..41592ab 100644
--- a/jjb/ric-plt-sdlgo/ric-plt-sdlgo.yaml
+++ b/jjb/ric-plt-sdlgo/ric-plt-sdlgo.yaml
@@ -13,7 +13,7 @@
     jobs:
       - gerrit-info-yaml-verify
 
-- _sdlgo_docker_common: &sdlgo_docker_common
+- sdlgo_docker_common: &sdlgo_docker_common
     # values apply to all sdlgo docker projects
     name: sdlgo-docker-common
     # git repo