Replace the EGL links and AddFb2 reference with a link to the
kernel docs. The kernel docs explain all the subtleties of dmabuf
exchange, and already link to EGL (and more).
Signed-off-by: Simon Ser <contact@emersion.fr>
This protocol extension is ubiquitous. It's time to mark it as
stable.
The interface names are left unchanged, so that compositors and
clients don't need to be updated. In particular, the legacy "z"
prefix is still part of the interface name.
Signed-off-by: Simon Ser <contact@emersion.fr>
