AMD: Move RAMBASE and RAMTOP

There are no reasons to not load ramstage @ 0x100000.

Boards with HAVE_ACPI_RESUME enabled have performance penalty in using
excessive RAMTOP. For these boards, this change releases 11 MiB of RAM from CBMEM allocation to OS.

Change-Id: Ib71995aba5e9332d0ec1626b3eb3b4ef6a506d1c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7094
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/northbridge/amd/agesa/Kconfig b/src/northbridge/amd/agesa/Kconfig
index 6caff0f..d557e62 100644
--- a/src/northbridge/amd/agesa/Kconfig
+++ b/src/northbridge/amd/agesa/Kconfig
@@ -39,4 +39,13 @@
 source src/northbridge/amd/agesa/family16kb/Kconfig
 source src/northbridge/amd/agesa/00730F01/Kconfig
 
+# TODO: Reservation for heap seems excessive
+config HEAP_SIZE
+	hex
+	default 0xc0000
+
+config RAMTOP
+	hex
+	default 0x400000
+
 endif # NORTHBRIDGE_AMD_AGESA