stmmac: dwmac-ipq806x: move ipq806x_gmac_fix_mac_speed function

Move ipq806x_gmac_fix_mac_speed in preparation for turning
the setup glue callback in a proper probe function.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c

@@ -248,6 +248,13 @@ static void *ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
 	return NULL;
 }
 
+static void ipq806x_gmac_fix_mac_speed(void *priv, unsigned int speed)
+{
+	struct ipq806x_gmac *gmac = priv;
+
+	ipq806x_gmac_set_speed(gmac, speed);
+}
+
 static void *ipq806x_gmac_setup(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -330,13 +337,6 @@ static void *ipq806x_gmac_setup(struct platform_device *pdev)
 	return gmac;
 }
 
-static void ipq806x_gmac_fix_mac_speed(void *priv, unsigned int speed)
-{
-	struct ipq806x_gmac *gmac = priv;
-
-	ipq806x_gmac_set_speed(gmac, speed);
-}
-
 static const struct stmmac_of_data ipq806x_gmac_data = {
 	.has_gmac	= 1,
 	.setup		= ipq806x_gmac_setup,