Add include necessary for ff_set_qscale

Originally committed as revision 21657 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/h261dec.c

@@ -28,6 +28,7 @@
 #include "dsputil.h"
 #include "avcodec.h"
 #include "mpegvideo.h"
+#include "h263.h"
 #include "h261.h"
 #include "h261data.h"
 

libavcodec/h261enc.c

@@ -28,6 +28,7 @@
 #include "dsputil.h"
 #include "avcodec.h"
 #include "mpegvideo.h"
+#include "h263.h"
 #include "h261.h"
 #include "h261data.h"