dsputil_template: replace assert() by av_assert2()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/dsputil_template.c

@@ -680,7 +680,7 @@ static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *p_dst/*align 8*/, uint8_t
     int i;\
     stride >>= sizeof(pixel)-1;\
     \
-    assert(x<8 && y<8 && x>=0 && y>=0);\
+    av_assert2(x<8 && y<8 && x>=0 && y>=0);\
 \
     if(D){\
         for(i=0; i<h; i++){\