Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[baremetal] MaaS: Remove curtin netconfig via Salt"
  - [baremetal] MaaS: Remove curtin netconfig via Salt

    JIRA: FUEL-301

    Change-Id: Id6b2b423b8045c581fa5c02133cf91702d9915c9
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 49021c0..69902a2 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 49021c0d3853cf23690743fe3ff26d055ff3ee50
+Subproject commit 69902a264c8090447ea141044c6cf5747bf89317