The qt6_android_generate_deployment_settings() command had been
creating deployment settings files with the wrong key name for qml
import paths. This resulted in the QT_QML_IMPORT_PATH target property
having no effect.
The QT_QML_IMPORT_PATH property can also potentially hold a list, not
just a single value. This change now handles the list case as well,
previously qt6_android_generate_deployment_settings() was assuming it
always held a single path if it was set.
Fixes: QTBUG-89628
Pick-to: 6.0
Change-Id: Ibdd74ec8d130f160433a60a14a0a9f496f496a1b
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>