twl4030-usb: rename twl4030_driver to twl4030_usb_driver.

The i2c_driver in twl4030-core.c and platform_driver of twl4030-usb.c
both has the name twl4030_driver. This leads to unnecessary confusion.

So rename the usb platform_driver appropriately to:
twl4030_usb_driver.
Signed-off-by: Jagadeesh Bhaskar Pakaravoor <j-pakaravoor@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/i2c/chips/twl4030-usb.c

@@ -744,7 +744,7 @@ static int __exit twl4030_usb_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct platform_driver twl4030_driver = {
+static struct platform_driver twl4030_usb_driver = {
 	.probe		= twl4030_usb_probe,
 	.remove		= __exit_p(twl4030_remove),
 	.driver		= {
@@ -755,13 +755,13 @@ static struct platform_driver twl4030_driver = {
 
 static int __init twl4030_usb_init(void)
 {
-	return platform_driver_register(&twl4030_driver);
+	return platform_driver_register(&twl4030_usb_driver);
 }
 subsys_initcall(twl4030_usb_init);
 
 static void __exit twl4030_usb_exit(void)
 {
-	platform_driver_unregister(&twl4030_driver);
+	platform_driver_unregister(&twl4030_usb_driver);
 }
 module_exit(twl4030_usb_exit);