drm/panthor: Add an entry to MAINTAINERS

Add an entry for the Panthor driver to the MAINTAINERS file.

v6:
- Add Maxime's and Heiko's acks

v4:
- Add Steve's R-b

v3:
- Add bindings document as an 'F:' line.
- Add Steven and Liviu as co-maintainers.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229162230.2634044-15-boris.brezillon@collabora.com

MAINTAINERS

@@ -1668,6 +1668,17 @@ F:	Documentation/gpu/panfrost.rst
 F:	drivers/gpu/drm/panfrost/
 F:	include/uapi/drm/panfrost_drm.h
 
+ARM MALI PANTHOR DRM DRIVER
+M:	Boris Brezillon <boris.brezillon@collabora.com>
+M:	Steven Price <steven.price@arm.com>
+M:	Liviu Dudau <liviu.dudau@arm.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Supported
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml
+F:	drivers/gpu/drm/panthor/
+F:	include/uapi/drm/panthor_drm.h
+
 ARM MALI-DP DRM DRIVER
 M:	Liviu Dudau <liviu.dudau@arm.com>
 S:	Supported