[gegl] tests: fix condition for inclusion of ff-load-save test

[Ell <ell src gnome org>]

commit c05e9bbc2f38accbd99f1daf4551fbaa532b57d5
Author: Ell <ell_se yahoo com>
Date:   Sat Oct 26 23:23:26 2019 +0300

    tests: fix condition for inclusion of ff-load-save test

 tests/ff-load-save/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/ff-load-save/meson.build b/tests/ff-load-save/meson.build
index 66bc64ee9..c48d8411d 100644
--- a/tests/ff-load-save/meson.build
+++ b/tests/ff-load-save/meson.build
@@ -1,4 +1,4 @@
-if gexiv2.found()
+if avlibs_found and gexiv2.found()
 
   test('ff-load-save',
     find_program('tests_ff_load_save.sh'),