Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to f070a5bf4bfc0032476e938f5b8d8029872644ec
  - Merge "Update Ansible playbook for PNF software upgrade"
  - Update Ansible playbook for PNF software upgrade
    
    Change-Id: I040cd9e18ce4487977b0715ff19b9830ca1a9eb9
    Issue-ID: SDNC-677
    Signed-off-by: Enbo Wang <wangenbo@huawei.com>
    
diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 9275319..f070a5b 160000
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 92753192dce9d0f526c0ddf79b3c5de6f05721e4
+Subproject commit f070a5bf4bfc0032476e938f5b8d8029872644ec