Add plugins of imported QtModules to the _qt_plugins property

This covers the following use case:
QtModuleX is pre-built and installed, it's imported. The plugin has
a PLUGIN_TYPE that is associated with QtModuleX and is built with
application that links QtModuleX. When deploying the application
it's expected that the plugin is deployed, as the one that belongs
to the linked QtModuleX.

This ensures that we udpate the internal _qt_plugins property that
is used in the __qt_internal_collect_plugin_targets_from_dependencies
function.

Pick-to: 6.5 6.6 6.7
Change-Id: I9824351ebab5a24509800da4db69f1e282a35884
Reviewed-by: Qt CI Bot <[email protected]>
Reviewed-by: Alexandru Croitor <[email protected]>

0 files changed, 0 insertions, 0 deletions