configure.ac: move AC_MSG_RESULT reporting back into the m4 macro

The one who does AC_MSG_CHECKING should provide the AC_MSG_RESULT.

Fixes: ced9425327b (configure: Introduce new output variable to
ax_check_python_mako_module.m4"

Cc: "10.5" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89328
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
2 files changed