blacklist ocDBSum for calc's threading

Triggers a number of asserts on hard-recalc (Shift+Ctrl+F9) with ooo#58183-1
that would require passing ScContextInterpreter* to a number of functions,
so just blacklist it.

Change-Id: I0c3666a3423cea7c77f530480b8b63506c4bbad2
Reviewed-on: https://gerrit.libreoffice.org/54933Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Jenkins <ci@libreoffice.org>

sc/source/core/tool/token.cxx

@@ -1319,7 +1319,8 @@ void ScTokenArray::CheckForThreading( OpCode eOp  )
         ocMatch,
         ocCell,
         ocInfo,
-        ocStyle
+        ocStyle,
+        ocDBSum
     });
 
     // We only call this if it was already disabled