Document how to test TempRamExit and verify the MTRR setup and loading.
TEST=None
Change-Id: I57a604fa139edac4b05453547d3caf185db491e0
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14113
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>