universal9810: overlay: add config for biometric sensors

    <!-- FP trustlet limits the number to 4. -->

    <integer name="config_fingerprintMaxTemplatesPerUser">4</integer>

    <!-- List of biometric sensors on the device, in decreasing strength. Consumed by AuthService

         when registering authenticators with BiometricService. Format must be ID:Modality:Strength,

         where: IDs are unique per device, Modality as defined in BiometricAuthenticator.java,

         and Strength as defined in Authenticators.java -->

    <string-array name="config_biometric_sensors" translatable="false" >

        <!-- ID0:Fingerprint:Strong -->

        <item>0:2:15</item>

    </string-array>

</resources>