Hello Chris,
There is no migration tool that will allow such a thing. I would recommend the following:
1 - Configure the AP6532 APs to use the ANYAP profile and not the default AP6532 profile
2 - Make a copy of the config
3 - Change the MAC address of the AP6532 to reflect that of the AP7522 AP. If you need to change IP address as well go ahead and do so.
4 - Load the config file into the AP7522 (don't save), reboot and test.
Thank you,
Chris
Christoph S.