Drop unnecessary libavcodec/ prefix in #include path.

Originally committed as revision 9033 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/grab.c

@@ -431,7 +431,7 @@ static int aiw_init(VideoData *s)
 }
 
 #ifdef HAVE_MMX
-#include "libavcodec/i386/mmx.h"
+#include "i386/mmx.h"
 
 #define LINE_WITH_UV \
                     movq_m2r(ptr[0],mm0); \
@@ -582,7 +582,7 @@ static int aiw_init(VideoData *s)
                     movd_r2m(mm1,lum_m2[(ptroff)]);
 
 #else
-#include "libavcodec/dsputil.h"
+#include "dsputil.h"
 
 #define LINE_WITH_UV \
                     lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\