Load hyphenation data at Zygote init

Loading hyphenation data on demand can cause UI jank (and can be a
strict mode violation). This patch explicitly loads the data at
Zygote init time. It also chooses /system/usr/hyphen-data as the path
for this data.

Bug: 20060770

Change-Id: Idac68e3971f8638f1d70960594bf6c1050bb23d6