Bluetooth: Set ISO Data Path on broadcast sink

This patch enables ISO data rx on broadcast sink.

Fixes: eca0ae4a

 ("Bluetooth: Add initial implementation of BIS connections")
Signed-off-by: Claudia Draghicescu <claudia.rosu@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>