dt-bindings: media: renesas,ceu: Convert to yaml

Convert the Renesas CEU bindings description to yaml schema and remove
the existing textual bindings document.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index cc0a4a8..111340d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10277,7 +10277,7 @@
 L:	linux-renesas-soc@vger.kernel.org
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	Documentation/devicetree/bindings/media/renesas,ceu.txt
+F:	Documentation/devicetree/bindings/media/renesas,ceu.yaml
 F:	drivers/media/platform/renesas-ceu.c
 F:	include/media/drv-intf/renesas-ceu.h