Add HC migrator package config name

    <string-array name="config_healthConnectMigrationKnownSigners">

    </string-array>

    <!-- Package name of Health Connect data migrator application.  -->

    <string name="config_healthConnectMigratorPackageName"></string>

    <!-- The Universal Stylus Initiative (USI) protocol version supported by each display.

         (@see https://universalstylus.org/).