mfd: Move asic3_remove to .devexit.text

The function asic3_remove is used only wrapped by __devexit_p so define
it using __devexit.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 63a2a66..e22128c 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -908,7 +908,7 @@
 	return ret;
 }
 
-static int asic3_remove(struct platform_device *pdev)
+static int __devexit asic3_remove(struct platform_device *pdev)
 {
 	int ret;
 	struct asic3 *asic = platform_get_drvdata(pdev);