amdfwtool: Add amdfwtool to combine AMD firmwares

Combine all needed AMD firmware into one single firmware, which going to
be added as one single CBFS module.

Change-Id: Ib044098c1837592b8f7e9c6a7da4ba3a32117e25
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/12419
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/Makefile.inc b/Makefile.inc
index b85a2cb..f5326ba 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -290,7 +290,7 @@
 endif
 
 additional-dirs := $(objutil)/cbfstool $(objutil)/romcc $(objutil)/ifdtool \
-		   $(objutil)/ifdfake $(objutil)/options $(objutil)/fletcher \
+		   $(objutil)/ifdfake $(objutil)/options $(objutil)/amdfwtool \
 		   $(objutil)/cbootimage $(objutil)/bimgtool
 
 #######################################################################
@@ -348,10 +348,10 @@
 	@printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
 	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
 
-FLETCHER:=$(objutil)/fletcher/fletcher
-$(FLETCHER): $(top)/util/fletcher/fletcher.c
+AMDFWTOOL:=$(objutil)/amdfwtool/amdfwtool
+$(AMDFWTOOL): $(top)/util/amdfwtool/amdfwtool.c
 	@printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
-	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
+	$(HOSTCC) $(HOSTCFLAGS) -DCONFIG_ROM_SIZE=$(CONFIG_ROM_SIZE) -o $@ $<
 
 CBOOTIMAGE:=$(objutil)/cbootimage/cbootimage