I know this a very old post but i do have a fix for this issue.
to recap the issue is caused by the pvid mismatch between the switch and ap.
Rather than configure all your switch ports to disable lldp you can configure your AP ethernet profile with the correct pvid.
All my access points are connected as untagged vlan 10. I created a new wired profile for vlan 10.
ap wired-ap-profile "vlan 10"
switchport access vlan 10
created a new lldp profile and disabled port vlan advertisments
ap lldp profile "vlan 10"
dot1-tlvs vlan-name
bound the two together
ap wired-port-profile "vlan 10"
wired-ap-profile "vlan 10"
lldp-profile "vlan 10"
added to the group
ap-group "AP_GROUP"
enet0-port-profile "vlan 10"
hey presto no logs filled with errors.
kind regards
Bmno