Add Lang-to-Script entries for languages with new hyph patterns

Hyphenation patterns are being added for 22 languages and they need
entries in LANG_TO_SCRIPT

This CL is a prerequisite to the following CL to add hyphenation
patterns for more languages:

https://googleplex-android-review.googlesource.com/#/c/890133/

BUG: 26405413
Change-Id: Ibba8379cca29a5a7b6df35f10b66468b612601f8