Move VSA support from x86 to Geode

Instead of the special case in the generic Makefile.inc,
use cbfs-files in the CPU directories.

Change-Id: I71d9c8dff906c9a516ac0dd09a315f8956075592
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/962
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
3 files changed