This adds Notify Phase API. This is an important call that is used
to inform FSP runtimes of different stages of SoC initializations
by the coreboot.
Change-Id: Icec770d0c1c4d239adb2ef342bf6cc9c35666e4d
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13800
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>