[PATCH] Fix compile error for ML300/403

Needed due to changes in ppc_sys.c.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/platforms/4xx/virtex.h b/arch/ppc/platforms/4xx/virtex.h
index 1a01b81..c14325d 100644
--- a/arch/ppc/platforms/4xx/virtex.h
+++ b/arch/ppc/platforms/4xx/virtex.h
@@ -27,7 +27,7 @@
 /* Device type enumeration for platform bus definitions */
 #ifndef __ASSEMBLY__
 enum ppc_sys_devices {
-	VIRTEX_UART,
+	VIRTEX_UART, NUM_PPC_SYS_DEVS,
 };
 #endif