Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "fix ceph reboot issue"
  - fix ceph reboot issue

    When storage nodes reboot or shutdown,
    the partitions of loop device will lose.
    We add the command partprobe -s {{loopdevice}} to rc.local,
    it will reload the partitions, when boot up the storage nodes.

    Change-Id: I31dfca953aa254fa516421a494318b01cd39675c
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index e63fd0c..697ef40 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit e63fd0ceff67ead3e9b362cc7b9126b7b8e2d650
+Subproject commit 697ef40111839d0003183976081a546affd534de