Do not produce temp s3.rom if the board doesn't need it.
S3.rom is useless for all the other boards which don't use flash to
save sleep/wakeup settings. AGESA-based boards other than persimmon
haven't been validated the S3 resume. They don't need S3.rom yet.
Change-Id: I12693e9556ca6f8e0d80b2ab2dca5c85bdb97685
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/902
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>