Update git submodules

* Update helpcontent2 from branch 'master'
  to 3534283c6b41a2f0db8cab28cc1abf628712b319
  - tdf#132643 Translate German section IDs
    
    Change-Id: I453659d2f1edbb4bf7cac1f316a88a6942ffdc5e
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/105003
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index c48bf0b..3534283 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit c48bf0be39cbd013bd30ebfe8e68453e30454bea
Subproject commit 3534283c6b41a2f0db8cab28cc1abf628712b319