Place s5h1411 into low power mode at end of attach routine()

From: Devin Heitmueller <devin.heitmueller@gmail.com>

Place the s5h1411 into low power mode until first use (to handle the case where
the user plugs in the device and then doesn't use it for a while).  On the
Pinnacle 801e, this brings the power usage from 126ma down to 82ma.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Index: v4l-dvb/linux/drivers/media/dvb/frontends/s5h1411.c
===================================================================
--- v4l-dvb.orig/linux/drivers/media/dvb/frontends/s5h1411.c	2008-11-15 22:33:00.000000000 -0500
+++ v4l-dvb/linux/drivers/media/dvb/frontends/s5h1411.c	2008-11-15 22:34:10.000000000 -0500
@@ -874,6 +874,9 @@
 	/* Note: Leaving the I2C gate open here. */
 	s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xf5, 1);
 
+	/* Put the device into low-power mode until first use */
+	s5h1411_set_powerstate(&state->frontend, 1);
+
 	return &state->frontend;
 
 error: