[media] r820t: put it into automatic gain mode

Currently, it is putting it on manual mode.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Antti Palosaari <crope@iki.fi>
diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index c644e90..e63ee94 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -1216,12 +1216,12 @@
 			return rc;
 	} else {
 		/* LNA */
-		rc = r820t_write_reg_mask(priv, 0x05, 0, 0xef);
+		rc = r820t_write_reg_mask(priv, 0x05, 0, 0x10);
 		if (rc < 0)
 			return rc;
 
 		/* Mixer */
-		rc = r820t_write_reg_mask(priv, 0x07, 0x10, 0xef);
+		rc = r820t_write_reg_mask(priv, 0x07, 0x10, 0x10);
 		if (rc < 0)
 			return rc;
 
@@ -1261,7 +1261,7 @@
 	if (rc < 0)
 		goto err;
 
-	rc = r820t_set_gain_mode(priv, true, 0);
+	rc = r820t_set_gain_mode(priv, false, 0);
 	if (rc < 0)
 		goto err;