create_coreboot_config: use per-variant me.bin

For Hatch, each variant has its own version of the ME binary, see
crrev.com/c/1931038. When creating config.${VARIANT} from the
baseboard, also look for me-hatch.bin (in the CONFIG_ME_BIN_PATH)
and modify it to reference me-${VARIANT}.bin.

BUG=b:140261109
TEST=`./create_coreboot_config.sh hatch sushi`
Examine third_party/chromiumos-overlay/sys-boot/coreboot/files/configs.
The git branch should be "create_sushi_" and today's date.
The new file config.sushi, will differ from config.hatch by three
lines:
> CONFIG_BOARD_GOOGLE_SUSHI=y
> CONFIG_IFD_BIN_PATH="3rdparty/blobs/baseboard/hatch/descriptor-sushi.bin"
> CONFIG_ME_BIN_PATH="3rdparty/blobs/baseboard/hatch/me-sushi.bin"

Change-Id: Id0f6e579c8afabdc99be86f0a4f108b11f087018
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/1960056
Tested-by: Paul Fagerburg <pfagerburg@chromium.org>
Auto-Submit: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Commit-Queue: Paul Fagerburg <pfagerburg@chromium.org>
1 file changed