ChromeOS boards: Use explicit include of chromeos.c

Change-Id: I7b3d044fad1d6973910e9bef347478a45c149a4f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5640
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Aaron Durbin <adurbin@google.com>
4 files changed