checkasm/utvideodsp: fix mixed declarations and code

Signed-off-by: James Almer <jamrial@gmail.com>

tests/checkasm/utvideodsp.c

@@ -60,6 +60,9 @@ LOCAL_ALIGNED_32(type, src_b0, [BUFFER_SIZE]);  \
 LOCAL_ALIGNED_32(type, src_r1, [BUFFER_SIZE]);  \
 LOCAL_ALIGNED_32(type, src_g1, [BUFFER_SIZE]);  \
 LOCAL_ALIGNED_32(type, src_b1, [BUFFER_SIZE]);  \
+declare_func(void, type *src_r, type *src_g, type *src_b,   \
+             ptrdiff_t linesize_r, ptrdiff_t linesize_g,    \
+             ptrdiff_t linesize_b, int width, int height);  \
 memset(src_r0, 0, BUFFER_SIZE);                 \
 memset(src_g0, 0, BUFFER_SIZE);                 \
 memset(src_b0, 0, BUFFER_SIZE);                 \
@@ -69,9 +72,6 @@ randomize_plane(src_b0, type);                  \
 memcpy(src_r1, src_r0, BUFFER_SIZE * sizeof(type));         \
 memcpy(src_g1, src_g0, BUFFER_SIZE * sizeof(type));         \
 memcpy(src_b1, src_b0, BUFFER_SIZE * sizeof(type));         \
-declare_func(void, type *src_r, type *src_g, type *src_b,   \
-             ptrdiff_t linesize_r, ptrdiff_t linesize_g,    \
-             ptrdiff_t linesize_b, int width, int height);  \
 call_ref(src_r0, src_g0, src_b0, WIDTH_PADDED, WIDTH_PADDED, WIDTH_PADDED, WIDTH, HEIGHT);\
 call_new(src_r1, src_g1, src_b1, WIDTH_PADDED, WIDTH_PADDED, WIDTH_PADDED, WIDTH, HEIGHT);\
 cmp_plane(src_r0, src_r1, sizeof(type));    \