Yes, you can RAID the drives together, the controller doesn't care. However, the hybrid drive will take a pretty good performance hit, because it will be limited by the HDD. I'd recommend leaving them separated.
You also may start to have volume issues when the hybrid responds quickly and the HDD does not. RAID controllers will flag a drive in an array that doesn't respond within a certain time frame (from one another). Even though the drive is fine, if the Read command times out, it will flag the drive as bad, and then you are out the info of the volume (RAID 0). This is why you don't use the "power savings" drives in arrays.