Complete the video format enum.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@8100 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/flv.h

@@ -83,6 +83,8 @@ enum {
     FLV_CODECID_H263    = 2,
     FLV_CODECID_SCREEN  = 3,
     FLV_CODECID_VP6     = 4,
+    FLV_CODECID_VP6A    = 5,
+    FLV_CODECID_SCREEN2 = 6,
 };
 
 enum {