ethernet: tundra: Drop forward declaration of static functions

Usually it's not necessary to declare static functions if the symbols are
in the right order. Moving the definition of tsi_eth_driver down in the
compilation unit allows to drop two such declarations.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220919131515.885361-1-u.kleine-koenig@pengutronix.deSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/tundra/tsi108_eth.c

@@ -59,9 +59,6 @@
 /* Check the phy status every half a second. */
 #define CHECK_PHY_INTERVAL (HZ/2)
 
-static int tsi108_init_one(struct platform_device *pdev);
-static int tsi108_ether_remove(struct platform_device *pdev);
-
 struct tsi108_prv_data {
 	void  __iomem *regs;	/* Base of normal regs */
 	void  __iomem *phyregs;	/* Base of register bank used for PHY access */
@@ -144,16 +141,6 @@ struct tsi108_prv_data {
 	struct platform_device *pdev;
 };
 
-/* Structure for a device driver */
-
-static struct platform_driver tsi_eth_driver = {
-	.probe = tsi108_init_one,
-	.remove = tsi108_ether_remove,
-	.driver	= {
-		.name = "tsi-ethernet",
-	},
-};
-
 static void tsi108_timed_checker(struct timer_list *t);
 
 #ifdef DEBUG
@@ -1683,6 +1670,16 @@ static int tsi108_ether_remove(struct platform_device *pdev)
 
 	return 0;
 }
+
+/* Structure for a device driver */
+
+static struct platform_driver tsi_eth_driver = {
+	.probe = tsi108_init_one,
+	.remove = tsi108_ether_remove,
+	.driver	= {
+		.name = "tsi-ethernet",
+	},
+};
 module_platform_driver(tsi_eth_driver);
 
 MODULE_AUTHOR("Tundra Semiconductor Corporation");