[TIMOB-12854] Blackberry : If the width & height are not specified the activity indicator should be considerably bigger than the current

Description: 1.Run the following code on BB simulator/device:

var win2 = Ti.UI.createWindow({
  backgroundColor: 'yellow'
});


var activityIndicator = Ti.UI.createActivityIndicator({
  //top:60,
  //left:60,
  //height:Ti.UI.SIZE,
  //width:Ti.UI.SIZE
});

win2.add(activityIndicator);
activityIndicator.show();
win2.open();

2.launch the app & notice the activity indicator Actual Result: 1.The activity indicator is not big enough Expected result: 1.The activity indicator should be at least 5 times bigger than the current Screenshot for the current activity indicator is attached