You will need the AP and PEF license at the minimum.
LIC-AP
LIC-PEF
Additionlaly if you want to play around with any of the IDS/IPS settings you will also need RF Protect
LIC-RFP
However these are the old Aruba part numbers, not sure if they match up to the HPE equivilant.
You will need one of each license for each AP you want to have active simultaniously on your controller.