lldp PVID mismatch between Aruba AP and HP Switch

Disable the port-vlan tlv under the ap lldp profile in the controller. 

CLI:
ap lldp profile "default"
  dot1-tlvs port-vlan vlan-name

GUI:
go to Configuration - Advanced Services - All Profiles
go to AP - AP LLDP - default
select Advanced tab
go to 802.1 TLVs
uncheck port-vlan

Source: https://abouthpnetworking.com/2016/11/23/device-lldp-pvid-mismatch/