ppc4xx: Add initial AMCC Haleakala PPC405EXr eval board support

The Haleakala is nearly identical with the Kilauea eval board. The only
difference is that the 405EXr only supports one EMAC and one PCIe
interface. This patch adds support for the Haleakala board by using
the identical image for Kilauea and Haleakala. The distinction is done
by comparing the PVR.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index 5ae588f..bf0ebb1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -303,6 +303,7 @@
 	bamboo			PPC440EP
 	bunbinga		PPC405EP
 	ebony			PPC440GP
+	haleakala		PPC405EXr
 	katmai			PPC440SPe
 	kilauea			PPC405EX
 	lwmon5			PPC440EPx