configure: add missing avcodec dependency to avfilter when bm3d filter is enabled

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

configure

@@ -6866,6 +6866,7 @@ enabled afir_filter         && prepend avfilter_deps "avcodec"
 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
 enabled aresample_filter    && prepend avfilter_deps "swresample"
 enabled atempo_filter       && prepend avfilter_deps "avcodec"
+enabled bm3d_filter         && prepend avfilter_deps "avcodec"
 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
 enabled convolve_filter     && prepend avfilter_deps "avcodec"
 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"