media: hdpvr: fix compiler warning

In function 'strncpy',
    inlined from 'vidioc_g_audio' at media-git/drivers/media/usb/hdpvr/hdpvr-video.c:876:2:
media-git/include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  return __builtin_strncpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/hdpvr/hdpvr-video.c

@@ -873,7 +873,7 @@ static int vidioc_g_audio(struct file *file, void *private_data,
 
 	audio->index = dev->options.audio_input;
 	audio->capability = V4L2_AUDCAP_STEREO;
-	strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
+	strlcpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
 	audio->name[sizeof(audio->name) - 1] = '\0';
 	return 0;
 }