iio: temperature: tmp117: add TI TMP116 support

The TMP116 is the predecessor of the TMP117. The TMP116 don't support
custom offset calibration data, instead this register is used as generic
EEPROM storage as well.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20230228090518.529811-5-m.felsch@pengutronix.de


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>