Fix string where it says "phone" on a tablet.

    <!-- Security Settings screen setting option title for the item to take you to the encryption and credential screen -->

    <string name="encryption_and_credential_settings_title">Encryption &amp; credentials</string>

    <!-- Security Settings screen Encryption and crendential summary -->

    <string name="encryption_and_credential_settings_summary">Phone encrypted</string>

    <string name="encryption_and_credential_settings_summary" product="default">Phone encrypted</string>

    <!-- Security Settings screen Encryption and crendential summary -->

    <string name="encryption_and_credential_settings_summary" product="tablet">Device encrypted</string>

    <!-- Security Settings screen setting option title for the item to take you to the lock screen preference screen [CHAR LIMIT=60] -->

    <string name="lockscreen_settings_title">Lock screen preferences</string>