ffserver needs ffm_muxer specifically, and rtsp_demuxer for rtsp_parse_line()

Originally committed as revision 10718 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -820,7 +820,7 @@ udp_protocol_deps="network"
 
 # programs
 ffplay_deps="sdl"
-ffserver_deps="muxers rtp_protocol"
+ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
 ffserver_extralibs='$ldl'
 vhook_extralibs='$ldl'