mainboards/amd/fam10: Add romstage timestamps

Example output:
1:start of rom stage            542
2:before ram initialization     193,989 (193,447)
3:after ram initialization      3,319,114 (3,125,124)
4:end of romstage               3,320,004 (889)

Change-Id: Idcde7dc4c7a1d6c3118c82b67e8c2fcd4a07553b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/8776
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

0 files changed, 0 insertions, 0 deletions