lavc/dnxhd: ff_dnxhd_cid_table is not exported

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/dnxhddata.h

@@ -46,7 +46,7 @@ typedef struct CIDEntry {
     AVRational frame_rates[5];
 } CIDEntry;
 
-extern av_export const CIDEntry ff_dnxhd_cid_table[];
+extern const CIDEntry ff_dnxhd_cid_table[];
 
 int ff_dnxhd_get_cid_table(int cid);
 int ff_dnxhd_find_cid(AVCodecContext *avctx, int bit_depth);