srt: Fix missing srt_cleanup on error path

(cherry picked from commit 52e3f716) (rebased)
rebased:
* 3.0 is freeing psz_host

Signed-off-by: Steve Lhomme <robux4@ycbcr.xyz>

modules/access/srt.c

@@ -399,6 +399,7 @@ failed:
 
     if ( p_sys->sock != -1 ) srt_close( p_sys->sock );
     if ( p_sys->i_poll_id != -1 ) srt_epoll_release( p_sys->i_poll_id );
+    srt_cleanup();
 
     free( p_sys->psz_host );