foob : add convertible check by sku_id
foob : add convertible check by sku_id

Foob has tow sku_id, sku_id=1 is for foob-180,
sku_id=9 is for foob-360.

BRANCH=master
BUG=b:145643393
TEST=make buildall

Change-Id: I3e682db0405b061cb21328654c8637275866d05f
Signed-off-by: xiaoqiang.zhu <6129627e30ecad2b251a4a73f864289e93ad74fc@bitland.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1980396
Reviewed-by: Henry Sun <26cd8a0b26a8449e909dff5211a18ba277320ec2@google.com>
Commit-Queue: Henry Sun <26cd8a0b26a8449e909dff5211a18ba277320ec2@google.com>
Tested-by: Henry Sun <26cd8a0b26a8449e909dff5211a18ba277320ec2@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec