Saver: update feature description.

    <!-- TV content rating system strings for ZA TV -->

    <!-- [CHAR_LIMIT=NONE] Battery saver: Feature description -->

    <string name="battery_saver_description">To help improve battery life, battery saver will reduce your device’s performance and restrict background data.  Email, messaging, and other apps that rely on syncing may not update unless you open them.\n\nBattery saver turns off automatically when your device is charging.</string>

    <string name="battery_saver_description">To help improve battery life, battery saver reduces your device’s performance and limits vibration and most background data. Email, messaging, and other apps that rely on syncing may not update unless you open them.\n\nBattery saver turns off automatically when your device is charging.</string>

</resources>