Update git submodules

* Update helpcontent2 from branch 'master'
  to b7fa972bc76c0954479bfd7f1b77c511372c4626
  - Update topic on Draw scale factor
    
    Change-Id: Ie64a78ee22c837f0f2a9cb76ef2a45c817721e00
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/120726
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index 374e66c..b7fa972 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 374e66c1c0353e0042a70ae67d663ccb084fb39a
Subproject commit b7fa972bc76c0954479bfd7f1b77c511372c4626