pi3usb9281: sync USB switch hardware control with switch state
pi3usb9281: sync USB switch hardware control with switch state

When sysjump to another image, if USB switch state and HW switch control
are not sychronized, the switch can be left in open state. This CL
resets USB switch on init to close USB.

BRANCH=oak
BUG=b:36234142
TEST=manual
  plug BC1.2 charger, sysjump to another EC image and unplug the chager.
  check pi3usb9281 control register(02h) bit2 == 1.

Change-Id: Iaadfaf51064ed1508271e974b9caf88b96bbe008
Signed-off-by: Rong Chang <3a05493f7adfb36d203f663b3bc2ba30e9d6284f@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/502835
Reviewed-by: Shawn N <5259333ce42e3ace6a73988cec7115ed9d3a661a@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec