Fix accessibility gesture summary text.

    <!-- Title for the preference to enable the global geture that turns on accessibility. [CHAR LIMIT=35] -->

    <string name="accessibility_global_gesture_preference_title">Accessibility shortcut</string>

    <!-- Summary for the preference to enable the global geture that turns on accessibility (on state). [CHAR LIMIT=60] -->

    <string name="accessibility_global_gesture_preference_summary_on">Press and hold power, then touch and hold two fingers</string>

    <string name="accessibility_global_gesture_preference_summary_on">On</string>

    <!-- Summary for the preference screen to enable the global geture that turns on accessibility (off state). [CHAR LIMIT=35] -->

    <string name="accessibility_global_gesture_preference_summary_off">Off</string>

    <!--  Description for the preference screen to enable the global geture taht turns on accessibility. [CHAR LIMIT=none] -->