Android: Restore accidentally deleted deduplication of QML root paths

Amends commit 12486c4b0d.

Pick-to: 6.7 6.5
Change-Id: I814c2b7595d5db9c650112b6980173d42708b005
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>

src/qml/Qt6AndroidQmlMacros.cmake

@@ -89,6 +89,7 @@ function(_qt_internal_collect_qml_root_paths target)
         endforeach()
     endif()
 
+    list(REMOVE_DUPLICATES qml_root_paths)
     set_target_properties(${target} PROPERTIES _qt_internal_qml_root_path "${qml_root_paths}")
 endfunction()