This new variant will support PTL pre-production silicon. The existing
`kinmen` variant will support production silicon.
BUG=b:434847748
TEST=Able to build google/kinmen4es.
Change-Id: If0597c1b63179e46a83286f2d46f958189f627cc
Signed-off-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88622
Reviewed-by: YH Lin <yueherngl@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Pranava Y N <pranavayn@google.com>
ba228d160f