Merge "Add flag for app-generated attest keys."

<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (C) 2021 The Android Open Source Project

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<!-- Feature for devices that support app attestation keys (i.e. KeyMint 1.0). -->

<permissions>

    <feature name="android.hardware.keystore.app_attest_key" />

</permissions>