amd/stoneyridge: Fix SPD files and functions camel case

Remove ugly camel case in the soc/amd/common and Stoney Ridge
SPD files and functions. Update the related mainboards.

Also, remove a unreferenced function prototype, smbus_readSpd().

Change-Id: I51045b6621f0708d61a570acbdcb4e6522baa1ea
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/amd/stoneyridge/BiosCallOuts.c

@@ -21,7 +21,7 @@
 
 #include <agesawrapper.h>
 #include <amdlib.h>
-#include <dimmSpd.h>
+#include <amdblocks/dimm_spd.h>
 
 AGESA_STATUS agesa_fch_initreset(UINT32 Func, UINTN FchData, VOID *ConfigPtr)
 {