Enable tcp_protocol when enabling http

Originally committed as revision 22388 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1394,6 +1394,7 @@ x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
 # protocols
 gopher_protocol_deps="network"
 http_protocol_deps="network"
+http_protocol_select="tcp_protocol"
 rtmp_protocol_deps="tcp_protocol"
 rtp_protocol_deps="udp_protocol"
 tcp_protocol_deps="network"