V4L/DVB (7521): media/video/cx88 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/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
index 2f5a4a4..87c751a 100644
--- a/drivers/media/video/cx88/cx88-alsa.c
+++ b/drivers/media/video/cx88/cx88-alsa.c
@@ -494,7 +494,7 @@
 
 	count = atomic_read(&chip->count);
 
-//	dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __FUNCTION__,
+//	dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__,
 //		count, new, count & (runtime->periods-1),
 //		runtime->period_size * (count & (runtime->periods-1)));
 	return runtime->period_size * (count & (runtime->periods-1));