build: move ebur128 swr dep to configure.

configure

@@ -5122,6 +5122,7 @@ enabled asyncts_filter      && prepend avfilter_deps "avresample"
 enabled atempo_filter       && prepend avfilter_deps "avcodec"
 enabled decimate_filter     && prepend avfilter_deps "avcodec"
 enabled deshake_filter      && prepend avfilter_deps "avcodec"
+enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
 enabled elbg_filter         && prepend avfilter_deps "avcodec"
 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

libavfilter/Makefile

@@ -1,8 +1,6 @@
 include $(SUBDIR)../config.mak
 
 NAME = avfilter
-EBUR128LIBS-$(CONFIG_SWRESAMPLE)              = swresample
-FFLIBS-$(CONFIG_EBUR128_FILTER)              += $(EBUR128LIBS-yes)
 
 HEADERS = asrc_abuffer.h                                                \
           avcodec.h                                                     \