Update git submodules

* Update docs/submodules/fuel from branch 'stable/fraser'
  - Merge "Update qemu/libvirt on compute nodes" into stable/fraser
  - Update qemu/libvirt on compute nodes

    Get qemu package with fix of TSC frequency mismatch between instance
    and host which breaks up nova pause/unpause operation.

    JIRA: FUEL-368
    Change-Id: I2c954b2b0a8cddca30c861f565b63b642e0b0e9f
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit 0a86dbb986bc0c22fae07dc489c21ce185a5540b)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index ed32f87..285d474 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit ed32f87371d5a3917910e010315b1565fce9b17d
+Subproject commit 285d4744660e6c44c381c260f78550b563a7e012