tcpm/fusb302: Wake charger task on VBUS level change

We need to wake up charger task right after AC is plugged
so that the charge state can be updated immediately.

BUG=b:71520398
BRANCH=none
TEST=Confirm charger task wakes up immediately when AC is
plugged in a Scarlet in G3.

Change-Id: I4a65b3da363cdc204b800bd300824dae616770cb
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/869419
Commit-Ready: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
1 file changed