Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 571173bcb479c22720ec601d8a5ea107104e0cfd
  - [DOC] Use the right version for ONAP Frankfurt
    
    The version given for Frankfurt version is not the right one. So we fix
    it with this commit.
    
    Issue-ID: OOM-2424
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
    Change-Id: I9e24f0b15d821904e70d758a978c2979a530adf0
    
diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 8e8f8cd..571173b 160000
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 8e8f8cd139689ebf89e8c2fdf11419418913a840
+Subproject commit 571173bcb479c22720ec601d8a5ea107104e0cfd