Bluetooth: mgmt: Fix address type while loading Long Term Key

This patch fixes the address type while loading long term keys when BT is
switched on. Without this fix pairing is reinitated even though LTK
exists for remote device because of mismatch of address type.

Signed-off-by: Hemant Gupta <hemant.gupta@stericsson.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>