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/w9966.c b/drivers/media/video/w9966.c
index cdb396d..33f7026 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -64,7 +64,7 @@
 /*#define DEBUG*/				/* Undef me for production */
 
 #ifdef DEBUG
-#define DPRINTF(x, a...) printk(KERN_DEBUG "W9966: %s(): "x, __FUNCTION__ , ##a)
+#define DPRINTF(x, a...) printk(KERN_DEBUG "W9966: %s(): "x, __func__ , ##a)
 #else
 #define DPRINTF(x...)
 #endif