An MCU kit that is created automatically also requires variable
expansion before the kit is generated. The same preparation for
the variables will be done as the MCU option page.
Task-number: UL-6603
Change-Id: I915f6f6e8c6e2a90409c527951e469c555002cff
Reviewed-by: Rainer Keller <Rainer.Keller@qt.io>
Reviewed-by: Yasser Grimes <yasser.grimes@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>