package/make: bump version to 4.2

Announcement URL:

  http://lists.gnu.org/archive/html/info-gnu/2016-05/msg00013.html

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2 files changed