AGESA: Drop some excessive agesawrapper.h includes

Change-Id: I3807912b1dc68fae8248a66e37bbe642fb92d3ae
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6262
Tested-by: build bot (Jenkins)

src/cpu/amd/agesa/heapmanager.c

@@ -1,5 +1,5 @@
 
-#include "agesawrapper.h"
+#include "AGESA.h"
 #include "amdlib.h"
 #include "northbridge/amd/agesa/def_callouts.h"
 #include "heapManager.h"