wifi/espat, rtl8720dn, wifinina: move towards standard common interface for wifi adaptors

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/espat/espconsole/main.go

@@ -114,7 +114,9 @@ func connectToAP() {
 	println("Connecting to wifi network '" + ssid + "'")
 
 	adaptor.SetWifiMode(espat.WifiModeClient)
-	adaptor.ConnectToAP(ssid, pass, 10)
+	if err := adaptor.ConnectToAccessPoint(ssid, pass, 10*time.Second); err != nil {
+		failMessage(err.Error())
+	}
 
 	println("Connected.")
 	ip, err := adaptor.GetClientIP()