Update git submodules

* Update docs/submodules/vfc/nfvo/lcm.git from branch 'master'
  to f8ad221b968ac85391d79a11db6546c933947f9d
  - Add ARG PKG_VERSION to Dockerfile
    
    Change-Id: I5b5aa75a3838a87c2f0aabcd4d721dc36d072be3
    Issue-ID: VFC-1383
    Signed-off-by: yangyan <yangyanyj@chinamobile.com>
    
diff --git a/docs/submodules/vfc/nfvo/lcm.git b/docs/submodules/vfc/nfvo/lcm.git
index c363c2c..f8ad221 160000
--- a/docs/submodules/vfc/nfvo/lcm.git
+++ b/docs/submodules/vfc/nfvo/lcm.git
@@ -1 +1 @@
-Subproject commit c363c2c9e5fd2cad61d9f64bea3d1a911e13e987
+Subproject commit f8ad221b968ac85391d79a11db6546c933947f9d