mpc83xx: Add support for the MPC8349E-mITX-GP

Add support for the MPC8349E-mITX-GP, a stripped-down version of the
MPC8349E-mITX.  Bonus features include support for low-boot (BMS bit in
HRCW is 0) for the ITX and a README for the ITX and the ITX-GP.

Signed-off-by: Timur Tabi <timur@freescale.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 1d0a8df..183fb10 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -350,6 +350,7 @@
 Timur Tabi <timur@freescale.com>
 
 	MPC8349E-mITX		MPC8349
+	MPC8349E-mITX-GP	MPC8349
 
 Kim Phillips <kim.phillips@freescale.com>