move EDGE_WIDTH definition allong with draw_edges where it belongs

Originally committed as revision 12322 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/dsputil.h

@@ -412,6 +412,7 @@ typedef struct DSPContext {
 #define RECON_SHIFT 6
 
     void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
+#define EDGE_WIDTH 16
 
     /* h264 functions */
     void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);

libavcodec/mpegvideo.h

@@ -45,8 +45,6 @@ enum OutputFormat {
     FMT_H264,
 };
 
-#define EDGE_WIDTH 16
-
 #define MPEG_BUF_SIZE (16 * 1024)
 
 #define QMAT_SHIFT_MMX 16