Replaces existing Windows 8 x86 builds with
a vanilla tier 1 image that gets all needed
software provisioned except for VS2013 that is
pre-installed.
Also modifies existing provisioning scripts
under common to support this 32bit OS.
Task-number: QTQAINFRA-1383
Change-Id: I495cb2d78b4d2d8b2abb9af1254fff0a78a570d9
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>
