V4L/DVB (7518): media/video/ replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/tcm825x.c b/drivers/media/video/tcm825x.c
index fb895f6..6943b44 100644
--- a/drivers/media/video/tcm825x.c
+++ b/drivers/media/video/tcm825x.c
@@ -906,7 +906,7 @@
 	rval = i2c_add_driver(&tcm825x_i2c_driver);
 	if (rval)
 		printk(KERN_INFO "%s: failed registering " TCM825X_NAME "\n",
-		       __FUNCTION__);
+		       __func__);
 
 	return rval;
 }