Merge "[Settings] Backup calling string change" into sc-dev

    <string name="backup_calling_settings_title">Backup calling</string>

    <!-- Backup calling summary.  [CHAR LIMIT=100] -->

    <string name="backup_calling_setting_summary">If <xliff:g id="backup_calling_operator_text" example="Google Fi">%1$s</xliff:g> is unavailable, use your mobile data SIM to make and receive <xliff:g id="backup_calling_carrier_text" example="Google Fi">%1$s</xliff:g> calls.</string>

    <string name="backup_calling_setting_summary">If <xliff:g id="backup_calling_operator_text" example="Google Fi">%1$s</xliff:g> is unavailable or roaming, use your mobile data SIM for <xliff:g id="backup_calling_carrier_text" example="Google Fi">%1$s</xliff:g> calls.</string>

    <!-- List of synonyms for the cross SIM calling titles, used to match in settings search [CHAR LIMIT=NONE] -->

    <string name="keywords_backup_calling">backup calling</string>