apollolake: modify PMIC_EN and RSMRST_N handling

Move power rail and pmic enable control to be handled at
board level due to specific board design.

Modify rsmrst where assertion is pass-through at all time
and de-assertion is only pass-through at power up.

BUG=chrome-os-partner:53666
BRANCH=none
TEST=amenia is able to handle apreset warm/cold, pmic shutdown,
     soc reset/shutdown.

Change-Id: I7ff819d88d0e194073bee8f02b1e3fa70ca44ba7
Signed-off-by: Kevin K Wong <kevin.k.wong@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/347370
Commit-Ready: David Hendricks <dhendrix@chromium.org>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Divya Jyothi <divya.jyothi@intel.com>
3 files changed