configure: do not drop to max loglevel 3

configure: do not drop to max loglevel 3

Summary:
For the actaul release this might be helpfull, however, we are in a
freeze, people are getting theire alpha releases, that might contain
bugs, its just makes the workflow of fixing faster if we can get and
see debugging output.

Reviewers: devilhorns, stefan_schmidt

Reviewed By: devilhorns

Subscribers: cedric, #committers, zmike

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D6548