:art: Use mtune=native (util)

diff --git a/util b/util
index 9e90c8e8470e94ad319e5bfc75717f6dacb1d6c4..92c305e9405870ff725218044b28a46266cc3012 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 9e90c8e8470e94ad319e5bfc75717f6dacb1d6c4
+Subproject commit 92c305e9405870ff725218044b28a46266cc3012