weston: Upgrade 1.11.1 -> 2.0.0, separate libweston
* Drop two patches that are upstream. Rebase other patches.
* Separate libweston into its own package, modify the recipe
as needed because files have changed location.
* Remove "--disable-rpi-compositor": the backend does not exist
anymore.
Libweston is already at version 2 and is likely to have new major
versions. The versions should be parallel installable (but weston
itself will not be).
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
