nct38xx: Use common tcpci set_polarity
nct38xx: Use common tcpci set_polarity

BUG=none
BRANCH=none
TEST=verify TCPCI is still functional

Change-Id: Id5004076ecf8eb7d9bd2e4f12a23d612cc5a8e33
Signed-off-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1956439
Reviewed-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>

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