Update git submodules

* Update helpcontent2 from branch 'master'
  - Cleanups in /shared/01/04*.xhp files
    
    Change-Id: I42a6cff181c3e3e5bf6dc4cca04865caab2e9bad
    Reviewed-on: https://gerrit.libreoffice.org/57120
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index d9fa5ee..eb238a7 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit d9fa5ee122295019fb58d45e1938dd14d2bbaf1a
Subproject commit eb238a78530bb8591eb73025a79374b167d5cd2d