buildroot

package/efl: bump to version 1.19.0

This new version of the EFL enables systemd support by default, so
we have to disable it explicitely for host-efl by adding an
additional --disable-systemd option to HOST_EFL_CONF_OPTS.

Also handle newly introduced options vnc-server and net-control
which brings additional dependencies. Disable them by default.

Select wayland-protocol package which is now required to build
the efl wayland support [1].

See the release announcement [2].

[1] https://git.enlightenment.org/core/efl.git/commit/?id=55750d41fad6055a549664ae92a34e636d7fb1f0
[2] https://sourceforge.net/p/enlightenment/mailman/message/35785467

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>