Update git submodules

* Update helpcontent2 from branch 'master'
  to 4d8a15e36d381a5d839b878f2058bfba15b3442c
  - tdf#155876 UI cmds Calc-Format menu (22)
    
    + Conditional formatting
    + refactoring
    
    Change-Id: I4fcca025ec2d4091f5a7afacf1adcc41e10826b0
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/160005
    Tested-by: Jenkins
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index 2fc5ab8..4d8a15e 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 2fc5ab8916f741bfea022ccfe770ce65efb90494
Subproject commit 4d8a15e36d381a5d839b878f2058bfba15b3442c