BHV-13458: DatePicker: Mismatch between year picker value and current value for th-Th locale

Issue:
There was a mismatch between year picker value and current value for th-TH locale
Fix:
Mismatch removed between year picker value and current value for th-TH locale

Enyo-DCO-1.1-Signed-off-by: Anshu Agrawal anshu.agrawal@lge.com
When a locale is set, this can potentially change the value of the `moon.DatePicker` from `null` to the current date, which might not always be desired if the user had not actually specified a date yet. Can we find another way to show the appropriate picker value when it is eventually expanded, taking into account the locale?