Add string for Wear version of permission "enforced by policy"

    <!-- Preference row title for showing system apps. -->

    <string name="preference_show_system_apps">Show system apps</string>

    <!-- Summary of a permission switch when it's enforced by policy [CHAR LIMIT=17] -->

    <string name="permission_summary_enforced_by_policy">Can\'t be changed</string>

    <!-- Generic text to indicate that a setting is enabled. Should be in all caps. [CHAR LIMIT=40] -->

    <string name="generic_enabled">ENABLED</string>

    <!-- Generic text to indicate that a setting is disabled. Should be in all caps. [CHAR LIMIT=40] -->