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/tuner-xc2028.h b/drivers/media/video/tuner-xc2028.h
index 3eb8420..612e490 100644
--- a/drivers/media/video/tuner-xc2028.h
+++ b/drivers/media/video/tuner-xc2028.h
@@ -55,7 +55,7 @@
 						 struct xc2028_config *cfg)
 {
 	printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
-	       __FUNCTION__);
+	       __func__);
 	return NULL;
 }
 #endif