QtWebKit: Marke WinCE as forcesuccess for now

qtdeclarative#dev is broken for WinCE, so this is a temporary solution
to unblock the CI.

Change-Id: I8f2341d16aefc0199e2b7676d338bccb2971121d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>