Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 68885623b91e7e4745b53df2393c53b37b00c6bb
  - Merge "Fix SDWAN lan-portId set in service-data"
  - Fix SDWAN lan-portId set in service-data

    SDWAN lan-portId value is copied and set it to
    prop.lan.lanPortId.

    Change-Id: Id01d0f1b22073d273f38b50d62817129e1bfd7ee
    Issue-ID: SDNC-659
    Signed-off-by: Prakash.E <prakash.e@huawei.com>

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 8e41096..6888562 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 8e41096b20a56f91be8df5f5ff200f76e9d7d4c3
+Subproject commit 68885623b91e7e4745b53df2393c53b37b00c6bb