Evil: fix infinite loop with setlocale

Summary: evil_setlocale was defined as setlocale in evil_private.h *before* evil_setlocale, hence evil_setlocale was calling itself. The solution was to not call evil_private.h in evil_locale.c

Test Plan: compialtion and elementary_test

Reviewers: zmike, raster, cedric

Reviewed By: zmike

Subscribers: reviewers, committers

Tags: efl

Maniphest Tasks: T7985

Differential Revision: https://phab.enlightenment.org/D9030