AGESA fam12 fam14 fam15: Use common agesa_readSpd()

Remove northbridge specific callouts for AGESA_READ_SPD.

Move low-level SMBus code to southbridge.

Change-Id: I5fc91c49d9ef8e0af1c4d8194f857c61ce417d1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7113
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/mainboard/amd/inagua/BiosCallOuts.c b/src/mainboard/amd/inagua/BiosCallOuts.c
index f67d879..5613012 100644
--- a/src/mainboard/amd/inagua/BiosCallOuts.c
+++ b/src/mainboard/amd/inagua/BiosCallOuts.c
@@ -22,7 +22,6 @@
 #include "BiosCallOuts.h"
 #include "heapManager.h"
 #include "SB800.h"
-#include <northbridge/amd/agesa/family14/dimmSpd.h>
 #include <stdlib.h>
 
 static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINT32 Data, VOID *ConfigPtr);
@@ -34,7 +33,7 @@
 	{AGESA_DEALLOCATE_BUFFER,		agesa_DeallocateBuffer },
 	{AGESA_LOCATE_BUFFER,			agesa_LocateBuffer },
 	{AGESA_DO_RESET,			agesa_Reset },
-	{AGESA_READ_SPD,			BiosReadSpd },
+	{AGESA_READ_SPD,			agesa_ReadSpd },
 	{AGESA_READ_SPD_RECOVERY,		agesa_NoopUnsupported },
 	{AGESA_RUNFUNC_ONAP,			agesa_RunFuncOnAp },
 	{AGESA_GNB_PCIE_SLOT_RESET,		board_GnbPcieSlotReset },