mb/google/rex: Enable ISH support

Enable ISH based on FW_CONFIG obtained from EC CBI. This is useful in
case device is a tablet and motion sensors are handled by ISH instead
of EC.

BUG=b:280329972,b:283023296
TEST= Set bit 21 of FW_CONFIG with CBI
      Boot rex board
      Check that ISH is enabled and loaded

Signed-off-by: Bernardo Perez Priego <bernardo.perez.priego@intel.com>
Change-Id: Ibe0e1b8ce2c9b08ac6b1e6fef9bd19afc9b4f59f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75039
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions