[warnings] fix -Wswitch-default

server/proxy/pf_channel.c

@@ -140,6 +140,8 @@ PfChannelResult channelTracker_update(ChannelStateTracker* tracker, const BYTE*
 		case CHANNEL_TRACKER_DROP:
 			result = PF_CHANNEL_RESULT_DROP;
 			break;
+		default:
+			break;
 	}
 
 	if (lastPacket)

server/proxy/pf_server.c

@@ -454,6 +454,7 @@ static BOOL pf_server_receive_channel_data_hook(freerdp_peer* peer, UINT16 chann
 		case PF_CHANNEL_RESULT_DROP:
 			return TRUE;
 		case PF_CHANNEL_RESULT_ERROR:
+		default:
 			return FALSE;
 	}