MAINTAINERS: Add entry for DRM panel drivers

Add myself as the maintainer for DRM panel drivers. The plan is to
collect panel-related patches in one place to reduce conflicts and
unburden Dave.
Signed-off-by: Thierry Reding <treding@nvidia.com>

MAINTAINERS

@@ -2851,6 +2851,16 @@ F:	drivers/gpu/drm/
 F:	include/drm/
 F:	include/uapi/drm/
 
+DRM PANEL DRIVERS
+M:	Thierry Reding <thierry.reding@gmail.com>
+L:	dri-devel@lists.freedesktop.org
+T:	git git://anongit.freedesktop.org/tegra/linux.git
+S:	Maintained
+F:	drivers/gpu/drm/drm_panel.c
+F:	drivers/gpu/drm/panel/
+F:	include/drm/drm_panel.h
+F:	Documentation/devicetree/bindings/panel/
+
 INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
 M:	Daniel Vetter <daniel.vetter@ffwll.ch>
 M:	Jani Nikula <jani.nikula@linux.intel.com>