lenovo/x60: export reboot_bits nvram configuration.

This permits any software running after the ramstage to tell coreboot that the
  boot was successfull.

Change-Id: I6b19160dcf1ea1948360db71d02e344a3bcb44ef
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: http://review.coreboot.org/3992
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
1 file changed