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/tda9840.c b/drivers/media/video/tda9840.c
index 269761c..0cee002 100644
--- a/drivers/media/video/tda9840.c
+++ b/drivers/media/video/tda9840.c
@@ -35,7 +35,7 @@
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");
 #define dprintk(args...) \
-	    do { if (debug) { printk("%s: %s()[%d]: ", KBUILD_MODNAME, __FUNCTION__, __LINE__); printk(args); } } while (0)
+	    do { if (debug) { printk("%s: %s()[%d]: ", KBUILD_MODNAME, __func__, __LINE__); printk(args); } } while (0)
 
 #define	SWITCH		0x00
 #define	LEVEL_ADJUST	0x02