MAINTAINERS: add it66121 HDMI bridge driver entry

Add Neil Armstrong and myself as maintainers
Signed-off-by: Phong LE <ple@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210419071223.2673533-4-narmstrong@baylibre.com

MAINTAINERS

@@ -9529,6 +9529,14 @@ Q:	http://patchwork.linuxtv.org/project/linux-media/list/
 T:	git git://linuxtv.org/anttip/media_tree.git
 F:	drivers/media/tuners/it913x*
 
+ITE IT66121 HDMI BRIDGE DRIVER
+M:	Phong LE <ple@baylibre.com>
+M:	Neil Armstrong <narmstrong@baylibre.com>
+S:	Maintained
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
+F:	drivers/gpu/drm/bridge/ite-it66121.c
+
 IVTV VIDEO4LINUX DRIVER
 M:	Andy Walls <awalls@md.metrocast.net>
 L:	linux-media@vger.kernel.org