configure: Fix remaining instances of mpg123_init check.
Spotted by Eric Pouech.
diff --git a/configure b/configure
index fa67fcb..052154b 100755
--- a/configure
+++ b/configure
@@ -11315,7 +11315,7 @@
fi
fi
-if test "x$ac_cv_lib_mpg123_mpg123_init" != xyes; then :
+if test "x$ac_cv_lib_mpg123_mpg123_feed" != xyes; then :
case "x$with_mpg123" in
x) wine_notices="$wine_notices|libmpg123 ${notice_platform}development files not found (or too old), mp3 codec won't be supported." ;;
xno) ;;
@@ -11323,7 +11323,7 @@
This is an error since --with-mpg123 was requested." "$LINENO" 5 ;;
esac
fi
-test "x$ac_cv_lib_mpg123_mpg123_init" = xyes || enable_winemp3_acm=${enable_winemp3_acm:-no}
+test "x$ac_cv_lib_mpg123_mpg123_feed" = xyes || enable_winemp3_acm=${enable_winemp3_acm:-no}
if test "$ac_cv_header_kstat_h" = "yes"
then
