[dvbapi] Allow the creation of descramblers for all stream pids

This should fix some streams on powervu channels not working. It should have been fixed on oscam side, so let's hope they will add it.

module-dvbapi.c

@@ -5901,7 +5901,7 @@ void dvbapi_write_cw(int32_t demux_id, uchar *cw, int32_t pid, int32_t stream_id
 		cs_hexdump(0, cw + (n * 8), 8, newcw, sizeof(newcw));
 
 		// check if already delivered and new cw part is valid but dont check for nullcw on Biss
-		if((memcmp(cw + (n * 8), demux[demux_id].lastcw[n], 8) != 0 || cwEmpty || stream_id >1)
+		if((memcmp(cw + (n * 8), demux[demux_id].lastcw[n], 8) != 0 || cwEmpty || stream_id > 0)
 			&& (memcmp(cw + (n * 8), nullcw, 8) != 0 || demux[demux_id].ECMpids[pid].CAID == 0x2600))
 		{
 			ca_index_t idx = dvbapi_ca_setpid(demux_id, pid, stream_id, (algo == CA_ALGO_DES), msgid);  // prepare ca