Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [ha] cmp: Fix duplicate PXE/admin IDs (2)

    Certain scenarios build additional interface definitions which
    overlap with the ones from common-ha reclass dir.
    Extend previous fix to scenario-specific interface definitions
    to prevent such duplicates.

    Change-Id: I57b175e2f760a22454723266b044845335af4cfe
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 8381fd3..69c8d42 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 8381fd3bf6e81c0b0f62bb6f382454ab63805ccb
+Subproject commit 69c8d42f380c1e9b1ca9967dba06741358884845