peer: fix witness checking for inbound.
peer: fix witness checking for inbound.

VidaID/bcoin,VidaID/bcoin,decentraland/decentraland-node,decentraland/decentraland-node,decentraland/bronzeage-node,decentraland/bronzeage-node,decentraland/decentraland-node,decentraland/bronzeage-node,VidaID/bcoin