Add support for AMD IMC controller.

This patch adds support to dump SIO like interface of AMD Embedded Controller
in the SB7xx and SB8xxx southbridges. Parts of the register interface are
documented in SBxxx RRG BDG.

Change-Id: Ib2ccaa3dfe33cfa8e7cba19d8ab0798286ad2f92
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Reviewed-on: http://review.coreboot.org/343
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>

util/superiotool/Makefile

@@ -57,7 +57,7 @@ CONFIG_PCI = yes
 ifeq ($(CONFIG_PCI), yes)
 CFLAGS += -DPCI_SUPPORT
 LIBS += -lpci
-OBJS += pci.o via.o
+OBJS += pci.o via.o amd.o
 endif
 
 all: $(PROGRAM)