Keep locale info in Hyphenator.

Even if the same data file is used, different hyphenation is applied
based on the locale. Now Hyphenator keeps locale and use it for
hyphenation.

Bug: 65024629
Test: bit CtsTextTestCases:android.text.cts.StaticLayoutTest
Test: bit CtsTextTestCases:android.text.cts.DynamicLayoutTest
Test: bit CtsWidgetTestCases:android.widget.cts.TextViewTest
Change-Id: I7e2ece979181d12ac1adbede14995ec9b7b87d21