Update git submodules

* Update loci from branch 'master'
  to 5e7e2faaa0cd1575993ded171db3d01facf91bd1
  - Refactor build scripts

    * Move reusable snippets to the library script helpers.sh
      as functions
    * Use separate scripts for building requirements and project
      images

    Signed-off-by: Vladimir Kozhukalov <kozhukalov@gmail.com>
    Change-Id: Ib4ba2d0d1eb568898c904922ec8d75e1731f953c

diff --git a/loci b/loci
index c1b127eee319c26ad96d8ed50e9eba825cc36c59..5e7e2faaa0cd1575993ded171db3d01facf91bd1 160000 (submodule)
--- a/loci
+++ b/loci
@@ -1 +1 @@
-Subproject commit c1b127eee319c26ad96d8ed50e9eba825cc36c59
+Subproject commit 5e7e2faaa0cd1575993ded171db3d01facf91bd1