Fix day of year value in RecurrenceProcessor.

RecurrenceProcessor#yearDay was returning incorrectly for July 1st due
to a wrong hard-coded value. Updating it to the correct value and adding
some unit tests for the function.

Bug: 111972497
Test: atest com.android.calendarcommon2.RecurrenceProcessorTest#testYearDay
Change-Id: If468db15d0f66ca059460fbf09d360360cfe8cdd