gateway: Active bucket forwarding handler (#14277)
gateway: Active bucket forwarding handler (#14277)

A regression removed support of federation in the gateway mode. 
Enable it again.

Federation is deprecated for a while but let's fix this for the time being.
donatello/minio,vadmeste/minio,balamurugana/minio,krisis/minio,donatello/minio,minio/minio,balamurugana/minio,vadmeste/minio,minio/minio,krisis/minio