drm/sched: Add Matthew Brost to maintainers

Add Matthew Brost to DRM scheduler maintainers.

Cc: Luben Tuikov <ltuikov89@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240131030302.2088173-1-matthew.brost@intel.comAcked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Luben Tuikov <ltuikov89@gmail.com>
Signed-off-by: Luben Tuikov <ltuikov89@gmail.com>

MAINTAINERS

@@ -7309,6 +7309,7 @@ F:	drivers/gpu/drm/xlnx/
 
 DRM GPU SCHEDULER
 M:	Luben Tuikov <ltuikov89@gmail.com>
+M:	Matthew Brost <matthew.brost@intel.com>
 L:	dri-devel@lists.freedesktop.org
 S:	Maintained
 T:	git git://anongit.freedesktop.org/drm/drm-misc