This doubles the amount of processor power given to the VMs. This
mirrors what Coin does when it detects a -debug-and-release flag in
the configure flags when doing a qmake Qt build.
Change-Id: I33a5c6a50a4ac279d097664d145439c856f132ec
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Toni Saario <toni.saario@qt.io>