Brings LC_* defs into line with POSIX

POSIX requires that LC_* constants be defined as macros, and libc++ is testing
for this. Source: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/locale.h.html

Change-Id: Id0653e54d74f12179ef88cadf7b5d6ba1bae3cdb
1 file changed