Fixes minimum date in DatePicker

Fixes: 158448787

When the day is earlier in than the minimum date, but
the year is later, then the year is changed, the date
gets set to a day that is earlier than the minimum date.
This CL ensures that the year change can't bring the
date outside of the range of minimum to maximum dates.

Test: manual testing
Change-Id: I0034bd513275267ecf9554f673533852e68dd854