V4L/DVB (13166): remove duplicate structure field initialization

The definition of tvaudio_tuner_ops initializes the s_tuner field twice.
It appears that the second case should initialize the g_tuner field.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@

if int(ps[0].line)!=int(pr[0].line) or int(ps[0].column)!=int(pr[0].column):
  cocci.print_main(fld,p0)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/tvaudio.c

@@ -1919,7 +1919,7 @@ static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
 	.s_radio = tvaudio_s_radio,
 	.s_frequency = tvaudio_s_frequency,
 	.s_tuner = tvaudio_s_tuner,
-	.s_tuner = tvaudio_g_tuner,
+	.g_tuner = tvaudio_g_tuner,
 };
 
 static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {