[FS#1395] Add support for SAE encryption for APs/clients

[LEDE Bugs]

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FS#1395 - Add support for SAE encryption for APs/clients
User who did this: Mathias Kresin (mkresin)
Task Type: Bug Report -> Feature Request

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1395