vboot2: use offset to vboot2 work buffer instead of absolute address

this change makes vb2_working_data struct point to the vboot work buffer by
the offset instead of by the absolute address, which can be different
depending on the context (e.g. subprocessor v.s. main cpu).

TEST=booted veyron pinky

Change-Id: I2191ca756c4f49441b3a357338f9c84564b58918
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 93f8b1da2b2c81aa3a33892987a71e9e1e7a8eff
Original-Change-Id: I4e4c12613304586b7395c5173cf08b8093f59521
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/236583
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9588
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
5 files changed