m3u.c: use input_item_SetTitle

This allow to have channelnames on saved xspf-playlist from dvb-scanning.

modules/demux/playlist/m3u.c

@@ -200,6 +200,7 @@ static int Demux( demux_t *p_demux )
 
             if ( psz_artist && *psz_artist )
                 input_item_SetArtist( p_input, psz_artist );
+            if( psz_name ) input_item_SetTitle( p_input, psz_name );
 
             input_item_AddSubItem( p_current_input, p_input );
             vlc_gc_decref( p_input );