[PATCH] Merge Yosemite & Yellowstone board ports

Now the AMCC eval boards Yosemite (440EP) and Yellowstone (440GR)
share one config file and all board specific files. This way we
don't have to maintain two different sets of files for nearly
identical boards.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/Makefile b/Makefile
index b1952ed..c2642df 100644
--- a/Makefile
+++ b/Makefile
@@ -1236,7 +1236,10 @@
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx yosemite amcc
 
 yellowstone_config:	unconfig
-	@$(MKCONFIG) $(@:_config=) ppc ppc4xx yellowstone amcc
+	@mkdir -p $(obj)include
+	@echo "#define CONFIG_YELLOWSTONE" > $(obj)include/config.h
+	@echo "Configuring for yellowstone board as subset of yosemite..."
+	@$(MKCONFIG) -a yosemite ppc ppc4xx yosemite amcc
 
 yucca_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx yucca amcc