V4L/DVB (11109): au0828: Fix compilation when VIDEO_ADV_DEBUG = n

As reported by Kyle McMartin and Randy Dunlap:

drivers/media/video/au0828/au0828-video.c:1438: error: 'const struct v4l2_subdev_core_ops' has no member named 'g_register'
drivers/media/video/au0828/au0828-video.c:1453: error: 'const struct v4l2_subdev_core_ops' has no member named 's_register'

This patch properly implements those two API ioctls only when debug is
enabled.

Cc: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/au0828/au0828-video.c

@@ -1427,6 +1427,7 @@ static int vidioc_streamoff(struct file *file, void *priv,
 	return 0;
 }
 
+#ifdef CONFIG_VIDEO_ADV_DEBUG
 static int vidioc_g_register(struct file *file, void *priv,
 			     struct v4l2_dbg_register *reg)
 {
@@ -1457,6 +1458,7 @@ static int vidioc_s_register(struct file *file, void *priv,
 	}
 	return 0;
 }
+#endif
 
 static int vidioc_reqbufs(struct file *file, void *priv,
 			  struct v4l2_requestbuffers *rb)
@@ -1578,8 +1580,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
 #ifdef CONFIG_VIDEO_ADV_DEBUG
 	.vidioc_g_register          = vidioc_g_register,
 	.vidioc_s_register          = vidioc_s_register,
-	.vidioc_g_chip_ident        = vidioc_g_chip_ident,
 #endif
+	.vidioc_g_chip_ident        = vidioc_g_chip_ident,
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
 	.vidiocgmbuf                = vidiocgmbuf,
 #endif