MAINTAINERS: Atmel drivers: change NAND and ISI entries

Update Josh's entries about NAND and ISI drivers.
Thanks for your work with Atmel Josh!

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Josh Wu <rainyfeeling@outlook.com>

MAINTAINERS

@@ -1931,7 +1931,7 @@ S:	Supported
 F:	drivers/i2c/busses/i2c-at91.c
 
 ATMEL ISI DRIVER
-M:	Josh Wu <josh.wu@atmel.com>
+M:	Ludovic Desroches <ludovic.desroches@atmel.com>
 L:	linux-media@vger.kernel.org
 S:	Supported
 F:	drivers/media/platform/soc_camera/atmel-isi.c
@@ -1950,7 +1950,8 @@ S:	Supported
 F:	drivers/net/ethernet/cadence/
 
 ATMEL NAND DRIVER
-M:	Josh Wu <josh.wu@atmel.com>
+M:	Wenyou Yang <wenyou.yang@atmel.com>
+M:	Josh Wu <rainyfeeling@outlook.com>
 L:	linux-mtd@lists.infradead.org
 S:	Supported
 F:	drivers/mtd/nand/atmel_nand*