Needed to get rid of warnings like
CMake Warning at cmake/QtFindPackageHelpers.cmake:406
(message): Could not find target Qt6::BundledLibYaml to query
its package name. Defaulting to package name Qt6BundledLibYaml.
Consider re-arranging the project structure to ensure
the target exists by this point.
which were introduced with the integration
of dffcc2370e in qtbase.
This happened because we never set and exported the package names
for 3rd party bundled libs.
So export the package name as well as "is 3rd party lib" value.
Amends 6235f7fa62
Pick-to: 6.4
Task-number: QTBUG-104998
Change-Id: I25fc1ffef766198974025e0097bced1cca4dd28d
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
ea668ff163