Update default GR parameter values to 300s as specified in the schema
Update default GR parameter values to 300s as specified in the schema

Change-Id: I0a413490c37284ce13059818511d3d114fdc85a2
Closes-Bug: 1741182

rombie/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller