Bluetooth: hci_sync: Fix smatch warning

This fixes the following new warning:

net/bluetooth/hci_sync.c:2403 hci_pause_addr_resolution() warn: missing
error code? 'err'

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202302251952.xryXOegd-lkp@intel.com/


Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>