add new board pm9g45

Add the new board PM9G45 from Ronetix GmbH.
* AT91SAM9G45 MCU at 400Mhz.
* 128MB DDR2 SDRAM
* 256MB NAND
* 10/100 MBits Ethernet DP83848
* Serial number chip DS2401

The board is made as SODIMM200 module.
For more info www.ronatix.at or info@ronetix.at.

Signed-off-by: Asen Dimov <dimov@ronetix.at>
diff --git a/MAINTAINERS b/MAINTAINERS
index 5cbc845..380e785 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -228,6 +228,7 @@
 
 	PM9261		AT91SAM9261
 	PM9263		AT91SAM9263
+	PM9G45		ARM926EJS (AT91SAM9G45 SoC)
 
 Gary Jennejohn <garyj@denx.de>