[POWERPC] Walnut board support

Board support for the PPC405 Walnut evaluation board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 041df77..8eb8d40 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -59,7 +59,7 @@
 source "arch/powerpc/platforms/86xx/Kconfig"
 source "arch/powerpc/platforms/embedded6xx/Kconfig"
 source "arch/powerpc/platforms/44x/Kconfig"
-#source "arch/powerpc/platforms/4xx/Kconfig
+source "arch/powerpc/platforms/40x/Kconfig"
 
 config PPC_NATIVE
 	bool