Fix documentation for splitMotionEvents attribute.

        <!-- Sets whether this ViewGroup should split MotionEvents

             to separate child views during touch event dispatch.

             If false (default), touch events will be dispatched to

             If false (default prior to HONEYCOMB), touch events will be dispatched to

             the child view where the first pointer went down until

             the last pointer goes up.

             If true, touch events may be dispatched to multiple children.

             MotionEvents for each pointer will be dispatched to the child

             If true (default for HONEYCOMB and later), touch events may be dispatched to

             multiple children. MotionEvents for each pointer will be dispatched to the child

             view where the initial ACTION_DOWN event happened.

             See {@link android.view.ViewGroup#setMotionEventSplittingEnabled(boolean)}

             for more information. -->