atheros: Accept Public Action frames sent to Wildcard BSSID

atheros: Accept Public Action frames sent to Wildcard BSSID

Previously, the check for mgmt->bssid matching own address (= BSSID)
ended up rejecting the case where Public Action frames are using
Wildcard BSSID in the Address 3 field. This could result in GAS queries
being dropped. Fix this by allowing both the own address (= AP BSSID)
and Wildcard BSSID in Action frame Address 3 field.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>