util/ifdtool: Use ICH Strap Length (ISL) to identify APL chipset

Use offset FLMAP1 bit 24:31, called ISL (ICH Strap Lenth) to uniquely
identify the chipsets without any additional logic.

+---------+-----------+
| Chipset | PSL Value |
+---------+-----------+
| APL     | 0x13      |
+---------+-----------+

BUG=b:153888802
TEST=Able to dump FD contains correctly without specifying platform
quirks on APL (IFDv1) Platform.
> ifdtool -d coreboot.rom
PCH Revision: Apollo Lake: N3xxx, J3xxx

Change-Id: I02bcc6b1ca61c4ee59582f1b310ed0fba0ef1d9a
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions