Add libavutil/internal.h #include, required for the DECLARE_ALIGNED macro.

This fixes swscale-example compilation.

Originally committed as revision 29353 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

libswscale/swscale_internal.h

@@ -28,6 +28,7 @@
 #endif
 
 #include "libavutil/avutil.h"
+#include "libavutil/internal.h"
 
 #define STR(s)         AV_TOSTRING(s) //AV_STRINGIFY is too long