Add missing codec id <-> codec tag entries:

CODEC_ID_RAWVIDEO <->  Y41B
CODEC_ID_RAWVIDEO <->  Y42B
CODEC_ID_RAWVIDEO <->  YUV9
CODEC_ID_RAWVIDEO <->  YVU9

These codec tags are listed in fourcc.org, and are already listed in
libavcodec/raw.c:ff_raw_pix_fmt_tags as AVI tags.

Originally committed as revision 23296 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/riff.c

@@ -171,6 +171,10 @@ const AVCodecTag ff_codec_bmp_tags[] = {
     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', '1') },
     { CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '1', '2') },
     { CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '2', '1') },
+    { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', 'B') },
+    { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', 'B') },
+    { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'V', '9') },
+    { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
     { CODEC_ID_FRWU,         MKTAG('F', 'R', 'W', 'U') },
     { CODEC_ID_R210,         MKTAG('r', '2', '1', '0') },
     { CODEC_ID_V210,         MKTAG('v', '2', '1', '0') },