Update git submodules

* Update helpcontent2 from branch 'master'
  to 5b56a1033406ebde26e98f2e9dbb843b7b93e73d
  - Housekeeping navigation of Tools menu
    
    tdf#155875
    tdf#155876
    tdf#155877
    tdf#155878
    
    Change-Id: I899bb3c5d91645381a868fb8184dba045022a118
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/157392
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index fb0675b..5b56a10 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit fb0675b83b007afc59e919dea066889d19d44044
Subproject commit 5b56a1033406ebde26e98f2e9dbb843b7b93e73d