morphius: support aoz ppc only
morphius: support aoz ppc only

There is a limitation on TCPC NCT3807,
which not support internal pull down on gpio.
We only use ppc AOZ1380 on board version 3.

BUG=b:156552519, b:161215922
BRANCH=none
TEST=make BOARD=morphius

Signed-off-by: Zick Wei <3d0b14a1e83601e71d11cd2c38ee93ff1dbbc737@quanta.corp-partner.google.com>
Change-Id: I3ab3fc86ae55939e1a7d73bef9d27719378736ba
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2297216
Reviewed-by: Edward Hill <db1406b34e091703092b6b136bdfeb2c8125fc0e@chromium.org>
Reviewed-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>
Commit-Queue: Edward Hill <db1406b34e091703092b6b136bdfeb2c8125fc0e@chromium.org>

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