Provide the bit definitions for the SMI status register. Also,
utilize them which means deleting some of the handlers that can't
exist because there are no status bits.
BUG=chrome-os-partner:54262
Change-Id: I389c7cb3cad01ba0eca52a337ffee352a2010bfa
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15154
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)