Emit "usesPermissionFlags" in "dump badging".

Since developers can declare the "neverForLocation" flag in their
manifest as public API, we should also offer a way to inspect the
value that we parsed from the manifest.

Bug: 183816684
Test: aapt2 dump badging \
        CtsAppThatRequestsBluetoothPermissionNeverForLocation31.apk
Change-Id: I93c0371d6fb1a0ca928aa26265074acee2bee879