Do not use full include path for headers in the same directory.

Originally committed as revision 16260 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/i386/idct_sse2_xvid.c

@@ -39,7 +39,7 @@
  */
 
 #include "libavcodec/dsputil.h"
-#include "libavcodec/i386/idct_xvid.h"
+#include "idct_xvid.h"
 
 /*!
  * @file idct_sse2_xvid.c