ffprobe: add rc_max_rate to stream output

The value is used by some bitstream to mark the maximum bit rate.

See thread:
Subject: [FFmpeg-devel] [PATCH] Add rc_max_rate to ffprobe stream output
Date: Sun,  1 Jun 2014 17:36:36 +0100
To: ffmpeg-devel@ffmpeg.org

http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/178461

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
lavf/mpegts: Reduce number of "Predefined SLConfigDescriptor" warnings shown.
tools/fourcc2pixfmt: Avoid using non public AV_PIX_FMT_NB

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/nutenc: Fix error handling in write_sm_data()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>