Bluetooth: Set default own address type only during controller setup

The default own address type is currently set at every power on of
a controller. This overwrites the value set via debugfs. To avoid
this issue, set the default own address type only during controller
setup.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>