MAINTAINERS: mark FRAMEBUFFER LAYER as Orphan

It has been a fun ride since 2017 but unfortunately I don't have
enough time to look after it properly anymore.
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7b709254-9412-8473-250c-0c4e006259b3@samsung.com

MAINTAINERS

@@ -6875,10 +6875,9 @@ F:	drivers/net/wan/dlci.c
 F:	drivers/net/wan/sdla.c
 
 FRAMEBUFFER LAYER
-M:	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
 L:	dri-devel@lists.freedesktop.org
 L:	linux-fbdev@vger.kernel.org
-S:	Maintained
+S:	Orphan
 Q:	http://patchwork.kernel.org/project/linux-fbdev/list/
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 F:	Documentation/fb/