libevdev: bump version to 1.5.4
For details see [1] and [2].
[1] https://lists.freedesktop.org/archives/input-tools/2016-August/001324.html
[2] https://lists.freedesktop.org/archives/input-tools/2016-August/001327.html
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>