Update git submodules

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

    While at it, fix duplicate "file.repl" entry in armband.nova_config
    SLS and drop upstream nova patch for Qemu 2.10 support previously
    backported.

    Fixes: f191bfb

    Change-Id: Ib4e56833df8e1095396af0856a0fad06f5e9ed1c
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/armband b/docs/submodules/armband
index 6eab8c9..bf5e0b5 160000 (submodule)
--- a/docs/submodules/armband
+++ b/docs/submodules/armband
@@ -1 +1 @@
-Subproject commit 6eab8c989c257213586347f284362cc43f99d3f4
+Subproject commit bf5e0b539fafdc2bf26bb1b0d49327f851c62fb3