Fix default spgwc image in omec deploy job

Change-Id: Ib687750c9b7bf9f04c42e4e317bd0d87ab8581ff
diff --git a/jjb/omec-ci.yaml b/jjb/omec-ci.yaml
index 3be724d..a359e90 100644
--- a/jjb/omec-ci.yaml
+++ b/jjb/omec-ci.yaml
@@ -789,7 +789,7 @@
 
       - string:
           name: spgwcImage
-          default: 'omecproject/ngic-cp:central-cp-multi-upfs-latest'
+          default: 'omecproject/spgw:master-latest'
           description: 'Docker image for spgwc. Leave empty to use default helm-charts value'
 
       - string: