Updated armband

Project: fuel  0ac1af6354f57c389b407cb1ea1e0365027704a6

docs: Mitaka Build req: Add p7zip-full.

Build system uplift to Fuel 9.0/Mitaka now requires `7z` cmd utility
also on the builder host (not only inside docker containers), so
document this as a prereq in the build instructions.

[1] https://gerrit.opnfv.org/gerrit/#/c/13919/

Change-Id: Icb57ac58c499272fce0a27bb2d25383e933c7814
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/upstream/fuel b/upstream/fuel
index 7445488..0ac1af6 160000 (submodule)
--- a/upstream/fuel
+++ b/upstream/fuel
@@ -1 +1 @@
-Subproject commit 74454885828f33629f0355616017b67768bc7bd8
+Subproject commit 0ac1af6354f57c389b407cb1ea1e0365027704a6