Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "deploy.sh: Factor out pkg deps into yaml files"
  - deploy.sh: Factor out pkg deps into yaml files

    Instead of hardcoding the packages to install on the jumphost at
    deploy time in `ci/deploy.sh`, move the requirements list to a
    dedicated yaml file, so it is decoupled from actual code.

    While at it, add missing deps:
    - ipxe-qemu (AArch64 Ubuntu only);

    Change-Id: I9ee5c0796b70f9d29427d608b6415333c8841e1e
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 7938017..2bd5228 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 7938017cfc501b9809d8ce95da614c7f7e849d5d
+Subproject commit 2bd5228ac21724a92f9cd1d162b304f3ea6285ce