configure: Add the http protocol as an auto-enabled dependency of the rtsp demuxer and muxer

Originally committed as revision 25355 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1361,8 +1361,9 @@ mxf_d10_muxer_select="mxf_muxer"
 ogg_demuxer_select="golomb"
 psp_muxer_select="mov_muxer"
 rtsp_demuxer_deps="sdp_demuxer"
+rtsp_demuxer_select="http_protocol"
 rtsp_muxer_deps="sdp_demuxer"
-rtsp_muxer_select="rtp_muxer"
+rtsp_muxer_select="rtp_muxer http_protocol"
 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
 sdp_demuxer_select="asf_demuxer rm_demuxer"
 spdif_muxer_select="aac_parser"