util/blobtool: add spec files for DDR3 SPDs

Because of how blobtool works, we need different files for the 128 and
256 byte versions.

Change-Id: I9a3a532515eaeeb65ae05ce4f7a37c88500c6193
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20094
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2 files changed