MAINTAINERS: Update Scott Wood's email address

Freescale is now NXP.  I still work there, but I won't be using their
mail system for U-Boot development.

Signed-off-by: Scott Wood <oss@buserror.net>

MAINTAINERS

@@ -353,7 +353,7 @@ F:	drivers/net/
 F:	net/
 
 NAND FLASH
-M:	Scott Wood <scottwood@freescale.com>
+M:	Scott Wood <oss@buserror.net>
 S:	Maintained
 T:	git git://git.denx.de/u-boot-nand-flash.git
 F:	drivers/mtd/nand/