Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - enalbe pass-through cpumode for virtual deployment

    JIRA:-

    For KVM scenario, each host should set cpumode pass-through,
    otherwise instances will fail to launch.

    Change-Id: If58dca1ad590203f6e8de36e44c242252350ad19
    Signed-off-by: chigang <chigang@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 97b8064..c8a7242 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 97b80647609264195da6db93e6f7c105b4771715
+Subproject commit c8a7242b5cd9c40e87a6eb98542c506c0307eb75