Bluetooth: Ignore the second button if one already pressed

    Ignore the second buton if already one button is pressed,
    this case comes when user is trying to press the both
    cancel and ok for the pairing dialog

    Change-Id: I77516ec59a972b4451bb8cff69645f7b9089497f
    CRs-Fixed: 624285

    Bluetooth: disable scan icon when BT state is off

    Usually onScanningStateChanged function should take care
    of disabling the scan icon when the scan is completed.

    But When the BT scan is going on and try to switch of the
    BT, as onScanningStateChanged function doesn't have the
    reference for scan icon it will not disable it, so disabling
    is taken care in BluetoothSettings on receiving BT Off state.

    On receiving BT Off state, disable the scan progress icon only
    when available device category is present.
    Change-Id: Ib827903d4f5c80eeb6ac8a06fb1a945140dd20c9
    CRs-Fixed: 543777,596214

Change-Id: Ia9c936fc53b099c18e0f5eadfb293eec028077a5