i2c: i2c-smbus: fix i2c_handle_smbus_host_notify documentation

The parameter description is from a previous implementation, update
it to describe the actual implementation.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/i2c-smbus.c

@@ -302,8 +302,8 @@ EXPORT_SYMBOL_GPL(i2c_setup_smbus_host_notify);
  * i2c_handle_smbus_host_notify - Forward a Host Notify event to the correct
  * I2C client.
  * @host_notify: the struct host_notify attached to the relevant adapter
- * @data: the Host Notify data which contains the payload and address of the
+ * @addr: the I2C address of the notifying device
- * client
+ * @data: the payload of the notification
  * Context: can't sleep
  *
  * Helper function to be called from an I2C bus driver's interrupt