Update git submodules

* Update docs/submodules/armband from branch 'master'
  - u/fuel: Bump & rebase for set_storage_layout

    Change-Id: Icfb495619b178af90998a82e4b359445649a7284

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 3dd58f2..ee70399 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 3dd58f27b33ec53c802809764ff5fa8293dcdd17
+Subproject commit ee70399ed80af4d68d8035a40b4355b2f15b907a