AT91SAM9263EK support

This patch adds support for the AT91SAM9263 chip and the AT91SAM9263EK
board.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 26f31fd..84bf19f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -539,6 +539,7 @@
 	at91cap9adk		ARM926EJS (AT91CAP9 SoC)
 	at91sam9260ek		ARM926EJS (AT91SAM9260 SoC)
 	at91sam9261ek		ARM926EJS (AT91SAM9261 SoC)
+	at91sam9263ek		ARM926EJS (AT91SAM9263 SoC)
 
 Stefan Roese <sr@denx.de>