Use the existing macros for CR0 to set the flags in the SMM stub. Change-Id: I0f02fd6b0c14cee35ec33be2cac51057d18b82c0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/20242 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>