Drop some duplicates of PCI-e config functions

These are not specific to Intel. Further work needs to be done to
combine these with MMCONF_SUPPORT in arch/io.h.

Change-Id: Id429db2df8d47433117c21133d80fc985b3e11e4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3502
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/southbridge/intel/bd82x6x/me_8.x.c b/src/southbridge/intel/bd82x6x/me_8.x.c
index f79adf5..72175d8 100644
--- a/src/southbridge/intel/bd82x6x/me_8.x.c
+++ b/src/southbridge/intel/bd82x6x/me_8.x.c
@@ -38,7 +38,7 @@
 #include <elog.h>
 
 #ifdef __SMM__
-# include <northbridge/intel/sandybridge/pcie_config.c>
+#include <arch/pci_mmio_cfg.h>
 #else
 # include <device/device.h>
 # include <device/pci.h>