haswell: vboot path support in romstage

Take the vboot path in romstage. This will complete the haswell
support for vboot firmware selection.

Built and booted. Noted firmware select worked on an image with
RW firmware support. Also checked that recovery mode worked as
well by choosing the RO path.

Change-Id: Ie2b0a34e6c5c45e6f0d25f77a5fdbaef0324cb09
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2856
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
1 file changed