AMD boards (non-AGESA): Cleanup earlymtrr.c includes

Change-Id: I5f4bf9dbaf3470dc83d3e980bb6cab10801e15c1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4523
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
diff --git a/src/cpu/amd/model_10xxx/Makefile.inc b/src/cpu/amd/model_10xxx/Makefile.inc
index c78f640..c82a26e 100644
--- a/src/cpu/amd/model_10xxx/Makefile.inc
+++ b/src/cpu/amd/model_10xxx/Makefile.inc
@@ -1,3 +1,4 @@
+romstage-y += ../../x86/mtrr/earlymtrr.c
 ramstage-y += model_10xxx_init.c
 ramstage-y += processor_name.c