Add support for BC3450 board

Signed-off-by: dzu@denx.de <dzu@denx.de>
diff --git a/Makefile b/Makefile
index 249c9f0..74e9474 100644
--- a/Makefile
+++ b/Makefile
@@ -259,6 +259,9 @@
 aev_config: unconfig
 	@./mkconfig -a aev ppc mpc5xxx tqm5200
 
+BC3450_config:	unconfig
+	@./mkconfig -a BC3450 ppc mpc5xxx bc3450
+
 cpci5200_config:  unconfig
 	@./mkconfig -a cpci5200  ppc mpc5xxx cpci5200 esd