8xx: add support for new keymile kmsupx4 board.

This patch adds support for the kmsupx4 board from Keymile,
based on a Freescale MPC852T CPU

- serial console on SMC1
- 32 MB SDRAM
- 32 MB NOR Flash
- Ethernet over SCC3
- I2C Bitbang

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/Makefile b/Makefile
index 859dfb7..a67cf15 100644
--- a/Makefile
+++ b/Makefile
@@ -921,6 +921,9 @@
 		 }
 	@$(MKCONFIG) -a IVMS8 ppc mpc8xx ivm
 
+kmsupx4_config:		unconfig
+	@$(MKCONFIG) $(@:_config=) ppc mpc8xx km8xx keymile
+
 KUP4K_config	:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc mpc8xx kup4k kup