Update Makefile.inc to allow MTRR display during bootblock and postcar.
TEST=Build and run on Galileo Gen2
Change-Id: If12896df46b9edfc9fff3fab3a12d2dae23517a3
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15990
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>