[PATCH] I2C: Trivial indentation fix in i2c/chips/Kconfig

Hi Greg,

Quoting myself:

> (...) I also think I see an indentation issue on the "tristate" line,
> seemingly copied from the SENSORS_DS1621 section which would need to
> be fixed as well.

Here is the trivial patch fixing that, if you want to apply it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>