BLE: Queue address resolution in event queue to avoid synchronous execution

Otherwise when no IRK are available, the process will execute synchronously, calling the callback before the return of the function.

connectivity/FEATURE_BLE/source/generic/PrivateAddressController.cpp

@@ -541,7 +541,10 @@ ble_error_t PrivateAddressController::queue_resolve_address(const address_t &pee
         return BLE_ERROR_NO_MEM;
     }
 
+    _event_queue.post([this, cb] {
         queue_privacy_control_block(cb);
+    });
+
     return BLE_ERROR_NONE;
 }