Helps build vulkan support in qtbase, and vaapi support in qtwebengine
Pick-to: 6.6.0
Task-number: QTBUG-115722
Change-Id: If51bc6a91c69829313991bfa9172026ce54476f7
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>
(cherry picked from commit b49729a50c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>