Doze: Pulse once when a pickup gesture is received.

- If configured, wire up the default sensor of TYPE_PICK_UP_GESTURE
  as a signal to pulse (once) when dozing.
- Extend the duration that a pulse is visible.
- Skip the pre-pulse delay for the sensor signals.

Bug:15863249
Change-Id: I70e39fc5626fef5570ef74464c919427e0721c32