Patch merged into coreboot/master: purin: chromeos.c also needed in romstage

the following patch was just integrated into master:
commit cdf8ee60711c1773337b9a907435b908420de920
Author: Stefan Reinauer 
Date:   Wed Jul 1 14:51:41 2015 -0700

purin: chromeos.c also needed in romstage

Otherwise the Chrome OS build won't succeed.

Change-Id: Idf93a09f53d08b6c201f1de140f0fff35f928dcc
    Signed-off-by: Stefan Reinauer 
    Reviewed-on: http://review.coreboot.org/10760
    Reviewed-by: Marc Jones 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/10760 for details.

-gerrit