[media] r820t: Show the read data in the bit-reversed order

As the driver's logic uses the bit-reversed order for read,
use it as well when displaying the debug messages.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Antti Palosaari <crope@iki.fi>

drivers/media/tuners/r820t.c

@@ -429,13 +429,14 @@ static int r820_read(struct r820t_priv *priv, u8 reg, u8 *val, int len)
 			return rc;
 		return -EREMOTEIO;
 	}
-	tuner_dbg("%s: i2c rd reg=%02x len=%d: %*ph\n",
-		  __func__, reg, len, len, p);
 
 	/* Copy data to the output buffer */
 	for (i = 0; i < len; i++)
 		val[i] = bitrev8(p[i]);
 
+	tuner_dbg("%s: i2c rd reg=%02x len=%d: %*ph\n",
+		  __func__, reg, len, len, val);
+
 	return 0;
 }