Fix typo in name of variable in resource router
Fix typo in name of variable in resource router

The config_group_param variable was incorrectly spelt in the
resource router.  This patch fixes this for clarity reasons.

Partially Implements: blueprint domain-config-ext

Change-Id: If67e76397351bdba566bc0e9347c3294eec20f07

ilay09/keystone,openstack/keystone,rajalokan/keystone,jumpstarter-io/keystone,vivekdhayaal/keystone,promptworks/keystone,vivekdhayaal/keystone,cernops/keystone,roopali8/keystone,dstanek/keystone,rajalokan/keystone,nuxeh/keystone,jamielennox/keystone,maestro-hybrid-cloud/keystone,mahak/keystone,rajalokan/keystone,ajayaa/keystone,idjaw/keystone,ajayaa/keystone,dstanek/keystone,klmitch/keystone,rushiagr/keystone,ilay09/keystone,promptworks/keystone,takeshineshiro/keystone,mahak/keystone,dstanek/keystone,promptworks/keystone,jumpstarter-io/keystone,klmitch/keystone,jonnary/keystone,takeshineshiro/keystone,mahak/keystone,cernops/keystone,himanshu-setia/keystone,himanshu-setia/keystone,openstack/keystone,jamielennox/keystone,rushiagr/keystone,roopali8/keystone,vivekdhayaal/keystone,nuxeh/keystone,maestro-hybrid-cloud/keystone,dims/keystone,openstack/keystone,idjaw/keystone,nuxeh/keystone,jonnary/keystone,jumpstarter-io/keystone,ilay09/keystone,dims/keystone,rushiagr/keystone