google/chell: Add chromeos.c to verstage

When enabling CONFIG_SEPARATE_VERSTAGE the functions in chromeos.c need
to be put into verstage.

BUG=chrome-os-partner:46289
BRANCH=none
TEST=enable SEPARATE_VERSTAGE and build for chell

Change-Id: Ic58a6e383806a7a64b9af760e194fddf15c645f1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 403f0707074802371237beecf1941034c1612f10
Original-Change-Id: Ib1154869974337b53a64efa5892a83ecd81973b8
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/310928
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12393
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed