futility: update: Preserve RO_FSG
futility: update: Preserve RO_FSG

Cheza early proto devices have declared few sections that must be
preserved before RO_PRESERVE is introduced, so we want to temporarily
include them until the migration is completed.

BUG=b:116326638
TEST=make futil; tests/futility/run_test_scripts.sh $(pwd)/build/futility
BRANCH=None

Change-Id: Ie8f397c000839ccfd475eab1d248843b23320465
Signed-off-by: Hung-Te Lin <8a7fce4940baad93a69f5073b383c85deed9d9c4@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1239797
Commit-Ready: ChromeOS CL Exonerator Bot <fa429e5907f00867f797423aea74327bb02c91b6@appspot.gserviceaccount.com>
Reviewed-by: Julius Werner <4d12f06cff3725783b352157673a720bc67c4afe@chromium.org>

coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot