ppc4xx: Add 405EP based PMC405DE board

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index 0797387..8244b51 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -172,6 +172,7 @@
 	PCI405		PPC405GP
 	PLU405		PPC405EP
 	PMC405		PPC405GP
+	PMC405DE	PPC405EP
 	PMC440		PPC440EPx
 	VOH405		PPC405EP
 	VOM405		PPC405EP