rtc: silence section mismatch warning in rtc-test

Fix following warning:
WARNING: vmlinux.o(.data+0x253e28): Section mismatch in reference from the variable test_drv to the function .devexit.text:test_remove()

Fix by renaming the platfrom_driver variable from *_drv to *_driver
so modpost ignore the reference to an __devexit section.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-test.c

@@ -147,7 +147,7 @@ static int __devexit test_remove(struct platform_device *plat_dev)
 	return 0;
 }
 
-static struct platform_driver test_drv = {
+static struct platform_driver test_driver = {
 	.probe	= test_probe,
 	.remove = __devexit_p(test_remove),
 	.driver = {
@@ -160,7 +160,7 @@ static int __init test_init(void)
 {
 	int err;
 
-	if ((err = platform_driver_register(&test_drv)))
+	if ((err = platform_driver_register(&test_driver)))
 		return err;
 
 	if ((test0 = platform_device_alloc("rtc-test", 0)) == NULL) {
@@ -191,7 +191,7 @@ exit_free_test0:
 	platform_device_put(test0);
 
 exit_driver_unregister:
-	platform_driver_unregister(&test_drv);
+	platform_driver_unregister(&test_driver);
 	return err;
 }
 
@@ -199,7 +199,7 @@ static void __exit test_exit(void)
 {
 	platform_device_unregister(test0);
 	platform_device_unregister(test1);
-	platform_driver_unregister(&test_drv);
+	platform_driver_unregister(&test_driver);
 }
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");