ARM romstages: Support and fix COLLECT_TIMESTAMPS

Change-Id: I53959eb937c1db3c4211e23a6476340383a33c5b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8021
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
5 files changed