Bluetooth: hci_sync: unlock on error in hci_inquiry_result_with_rssi_evt()

Add unlocks to two error paths in hci_inquiry_result_with_rssi_evt().

Fixes: fee64503

 ("Bluetooth: hci_event: Use skb_pull_data when processing inquiry results")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>