Update acquired strings

    <!-- Message shown during face enrollment when the face is too similar to a previous acquisition [CHAR LIMIT=50] -->

    <string name="face_acquired_too_similar">Too similar, please change your pose.</string>

    <!-- Message shown during acqusition when the user's face is turned too far left or right [CHAR LIMIT=50] -->

    <string name="face_acquired_pan_too_extreme">Please look more directly at the screen.</string>

    <string name="face_acquired_pan_too_extreme">Turn your head a little less.</string>

    <!-- Message shown during acqusition when the user's face is tilted too high or too low [CHAR LIMIT=50] -->

    <string name="face_acquired_tilt_too_extreme">Please look more directly at the screen.</string>

    <string name="face_acquired_tilt_too_extreme">Turn your head a little less.</string>

    <!-- Message shown during acquisiton when the user's face is tilted too far left or right [CHAR LIMIT=50] -->

    <string name="face_acquired_roll_too_extreme">Please straighten your head vertically.</string>

    <string name="face_acquired_roll_too_extreme">Turn your head a little less.</string>

    <!-- Message shown during acquisition when the user's face is obscured [CHAR LIMIT=50] -->

    <string name="face_acquired_obscured">Clear the space between your head and the phone.</string>

    <string name="face_acquired_obscured">Remove anything hiding your face.</string>

    <!-- Message shown during acquisition when the sensor is dirty [CHAR LIMIT=50] -->

    <string name="face_acquired_sensor_dirty">Please clean the camera.</string>

    <string name="face_acquired_sensor_dirty">Clean the sensor at the top edge of the screen.</string>

    <!-- Array containing custom messages shown during face acquisition from vendor.  Vendor is expected to add and translate these strings -->

    <string-array name="face_acquired_vendor">

    </string-array>