QNX: Change default value for inquiry type in QBluetoothDeviceDiscoveryAgent

Change-Id: I46b780875ec8ae7bfd0aeda89b6271a1fa0b30b1
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
QNX: Close the BT control FD with a delay

Otherwise messages might not be passed to the BT service correctly.

Change-Id: I3ff26caa853283b09a995806631fdc82ac851e6f
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
QNX: Only send radio_init message when Bluetooth is really powered off

Change-Id: I05b8f14c8b65529eb0502b90d8949ed2a9a8b031
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>