Alternative buffer communication support for PTT is no longer
needed for CNL onwards and coreboot does not need to reserve additional
4KiB memory for PTT support.
Change-Id: I11993cef77fd5e879eedabc1ed344f91f8257c90
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/27176
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
d5018a8f78