efl-mono: Fix --enable-mono-beta for tests
Reviewers: bu5hm4n, vitor.sousa, segfaultxavi, woohyun, Jaehyun_Cho, YOhoho, lauromoura
Reviewed By: lauromoura
Subscribers: cedric, reviewers, committers
Tags: efl
Differential Revision: https://phab.enlightenment.org/D8573