Implement exp_check_for_ready
Implement exp_check_for_ready

Change-Id: I463f938cec81bfd34293afa17d0c4a4e68cac4a1
Original-Change-Id: I11e80e70c411ec0f5a1891e078b669f176658c34
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/61972
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: HWSV CI <ae069ce3805842f4ed79e0ef7868baadb5df0a6b@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Louis Stermole <a2bef96d502debd02962600aef4d81d949c35039@us.ibm.com>
Reviewed-by: RYAN P. KING <b0f757ae34e4d5e08341e0046ecf2ce9ace939d9@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <65293609e29ccd0ac899f5f3f03aea95be1b215f@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <ab93eca12e43608f33daa16a67357cd7b7e867ab@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot