Starlark aar_import does not expose StarlarkAndroidResourcesInfo

Discovered while testing https://github.com/bazelbuild/examples/pull/287.

When building examples/android/ndk with rules_android master branch, the build succeeds. The `ManifestMerger` action has the `--mergeeManfests` argument set to a list of manifest files, which includes `@maven//\:androidx_appcompat_appcompat,bazel-out/android-arm64-v8a-fastbuild-ST-0b94fd089017/bin/external/maven/androidx_appcompat_appcompat_resources_processed_manifest/AndroidManifest.xml`

When building with the pre-alpha branch, the `ManifestMerger` does not set the flag, and the merge action fails (presumably due to the lack of needed dependencies).