MAINTAINERS: drop Wenyou Yang from Atmel NAND driver support

Mails to wenyou.yang@microchip.com are not deliverable.
Drop him as Microchip/Atmel NAND controller driver maintainer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 63700ce..418e7b9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9345,7 +9345,6 @@
 F:	devicetree/bindings/media/atmel-isc.txt
 
 MICROCHIP / ATMEL NAND DRIVER
-M:	Wenyou Yang <wenyou.yang@microchip.com>
 M:	Josh Wu <rainyfeeling@outlook.com>
 L:	linux-mtd@lists.infradead.org
 S:	Supported