standardise DATABASE_NAME variable

hack/e2e/run-rp-and-e2e.sh

@@ -79,7 +79,7 @@ clean_e2e_db(){
 # TODO: CLUSTER and ARO_RESOURCEGROUP are also recalculated in multiple places
 # in the billing pipelines :-(
 export CLUSTER="v4-e2e-V$BUILD_BUILDID"
-export DATABASE_NAME="v4-e2e-V$BUILD_BUILDID"
+export DATABASE_NAME="v4-e2e-V$BUILD_BUILDID-$LOCATION"
 export ARO_RESOURCEGROUP="v4-e2e-V$BUILD_BUILDID-$LOCATION"
 export E2E_CREATE_CLUSTER=true
 export E2E_DELETE_CLUSTER=true