Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - patches: linux.storage.lvm: Disable filter

    JIRA: FUEL-304

    Change-Id: I52ae89f933f976b678b27f79e2ad67c3699ef8ec
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 69902a2..d7927a5 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 69902a264c8090447ea141044c6cf5747bf89317
+Subproject commit d7927a5e63e5314c2a81970150b849b0b9d0bd49