it83xx/espi: re-enable port80 after espi reset
it83xx/espi: re-enable port80 after espi reset

Our HW design is that Vcc on->off transition will disable port80.
Once we reset espi module, then Vcc has on -> off transition and
this cause port80 disabled. I re-enable port80 after espi reset.

BUG=b:163100497
BRANCH=none
TEST=On drawcia, check port80 values and SPCTRL1 register (= 0xc2)
after "reboot" and "power on" reset

Signed-off-by: Ruibin Chang <b699c56ab2b5ba53a04d5f7456f89105c94b09ea@ite.com.tw>
Change-Id: I2c6b0542cf08bee324e38886d1ce5909cd0b3776
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2479442
Tested-by: Ruibin Chang <6748d95250dd3d29f04d200035d5434f3b7820ef@ite.com.tw>
Tested-by: Divagar Mohandass <ff426658e16095e1f3195dd2cccc34b48025db22@intel.com>
Reviewed-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>

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