TCPMv2: Improve timing in Attached.SRC
TCPMv2: Improve timing in Attached.SRC

Don't wait an extra 15 ms to debounce CC after detecting CC open. Don't
wait to react to CC open until PD is enabled.

BUG=b:163143427
TEST=Attach volteer C1 to volteer C1; observe unstable Attach.SRC, but
        PE doesn't start
BRANCH=none

Signed-off-by: Abe Levkoy <2e1ad7039298f93262cf06bbb457275fb3e2ecb5@chromium.org>
Change-Id: Ibd4bd4948fefd5f931dcdc98b1716744c46682b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2392563
Reviewed-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
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