V4L/DVB (13238): v4l2_subdev: rename tuner s_standby operation to core s_power

Upcoming I2C v4l2_subdev drivers need a way to control the subdevice
power state from the core. This use case is already partially covered by
the tuner s_standby operation, but no way to explicitly come back from
the standby state is available.

Rename the tuner s_standby operation to core s_power, and fix tuner
drivers accordingly. The tuner core will call s_power(0) instead of
s_standby(). No explicit call to s_power(1) is required for tuners as
they are supposed to wake up from standby automatically.

[mchehab@redhat.com: CodingStyle fix]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index 51527d7..1485aee 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -830,7 +830,7 @@
 		au0828_uninit_isoc(dev);
 
 		/* Save some power by putting tuner to sleep */
-		v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_standby);
+		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
 
 		/* When close the device, set the usb intf0 into alt0 to free
 		   USB bandwidth */