Rename ARRAYSIZE -> ARRAY_SIZE in Hyphenator.h

ARRAYSIZE conflicts with a macro in windows.h. When windows.h is
included, ARRAYSIZE is defined, so cpp files that include windows.h and
Hyphenator.h will throw an error.

This change was originally from ag/20521047.

Bug: 317994636
Test: m libminikin librobolectric-nativeruntime
Change-Id: I3ec35eeab2f13a5496ce272469c1c818a1357c13