Add sim serial to collected device properties.

lib/roles/device/plugins/phone.js

@@ -9,7 +9,11 @@ module.exports = syrup.serial()
 
     function fetch() {
       log.info('Fetching phone info')
-      return input.getProperties(['imei', 'phoneNumber'])
+      return input.getProperties([
+        'imei'
+      , 'phoneNumber'
+      , 'simSerial'
+      ])
     }
 
     return fetch()