Fix adbkit API invocations (#524)

Update Adbkit to 3.2.3

lib/units/device/support/adb.js

@@ -1,6 +1,7 @@
 var syrup = require('@devicefarmer/stf-syrup')
 
-var adbkit = require('@devicefarmer/adbkit')
+var adbkit = require('@devicefarmer/adbkit').Adb
+var deviceClient = require('@devicefarmer/adbkit').DeviceClient
 
 var logger = require('../../../util/logger')
 var promiseutil = require('../../../util/promiseutil')
@@ -15,8 +16,9 @@ module.exports = syrup.serial()
     adb.Keycode = adbkit.Keycode
 
     function ensureBootComplete() {
+      var client = deviceClient(adb, options.serial)
       return promiseutil.periodicNotify(
-          adb.waitBootComplete(options.serial)
+          client.waitBootComplete()
         , 1000
         )
         .progressed(function() {