lnwallet: properly set nodeAddr during channel reservation init

This commit fixes a lingering bug within the channel funding
reservation workflow that caused the address of a channel counter-party
to not be written to disk, resulting in an error on start up. To fix
this, we now properly populate the node’s TCP address when initiating
the reservation.

lnwallet/wallet.go

@@ -501,6 +501,7 @@ func (l *LightningWallet) InitChannelReservation(capacity,
 		csvDelay:      csvDelay,
 		ourDustLimit:  ourDustLimit,
 		nodeID:        theirID,
+		nodeAddr:      theirAddr,
 		err:           errChan,
 		resp:          respChan,
 	}