Updates utils-git: db8aaf5 Adds git-submodule-checkout-branch and git-submodules...

diff --git a/utils-git b/utils-git
index 8b56dface439ff13c9977d958b891bfb79b09850..db8aaf5f8f0886c8aad9abfc504685e49e70b39c 160000 (submodule)
--- a/utils-git
+++ b/utils-git
@@ -1 +1 @@
-Subproject commit 8b56dface439ff13c9977d958b891bfb79b09850
+Subproject commit db8aaf5f8f0886c8aad9abfc504685e49e70b39c