configure: fix assignment of dep libs for QR-code filters

configure

@@ -7773,8 +7773,8 @@ enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
 enabled pan_filter          && prepend avfilter_deps "swresample"
 enabled pp_filter           && prepend avfilter_deps "postproc"
-enabled qrencode_filter     && prepend_avfilter_deps "swscale"
-enabled qrencodesrc_filter  && prepend_avfilter_deps "swscale"
+enabled qrencode_filter     && prepend avfilter_deps "swscale"
+enabled qrencodesrc_filter  && prepend avfilter_deps "swscale"
 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
 enabled sab_filter          && prepend avfilter_deps "swscale"
 enabled scale_filter    && prepend avfilter_deps "swscale"