docs/egl: complete list of dri2 platforms

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6130>
diff --git a/docs/egl.rst b/docs/egl.rst
index 7916c74..ab786cf 100644
--- a/docs/egl.rst
+++ b/docs/egl.rst
@@ -116,8 +116,9 @@
 -----------
 
 ``egl_dri2``
-   This driver supports both ``x11`` and ``drm`` platforms. It functions
-   as a DRI driver loader. For ``x11`` support, it talks to the X server
+   This driver supports several platforms: ``android``, ``device``,
+   ``drm, ``surfaceless``, ``wayland`` and ``x11``. It functions as
+   a DRI driver loader. For ``x11`` support, it talks to the X server
    directly using (XCB-)DRI2 protocol.
 
    This driver can share DRI drivers with ``libGL``.