NumberPicker should not throw an exception if no enough values for wrapping.

1. The selector wheel was throwing an exception if a client requires that it
   wraps its selector wheel if the number of values is less that the number
   of values shown in the wheel.  While wrapping makes no sense if the all
   possible values are already shown, we should not throw an exception,
   rather to ignore the request.

bug:5911190

Change-Id: Icd90cd39f66d9f39939801752bf1eb1eef8fe757