dumpstate: Always vibrate, even in DND

Since there's cases where you want to collect logs (screen stuck
off) and would like some assurance that a bugreport started, let's
always vibrate even in DND mode when dumpstate starts.

Tested: bugreport
  -- dumpstate: Vibrate: 'cmd vibrator vibrate -f 150 dumpstate'
Bug: 134058764
Change-Id: I9a06469c0ce7eb1d6b4ecdd89307b968bcf33e2b