dt-bindings: iio: ti,tmp117: fix documentation link

Fix the broken link to point to the correct homepage.

Fixes: 5e713b25 ("dt-bindings: iio: temperature: Add DT bindings for TMP117")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230228090518.529811-2-m.felsch@pengutronix.deSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/temperature/ti,tmp117.yaml

@@ -9,7 +9,7 @@ title: TI TMP117 - Digital temperature sensor with integrated NV memory
 description: |
     TI TMP117 - Digital temperature sensor with integrated NV memory that supports
     I2C interface.
-      https://www.ti.com/lit/gpn/tmp1
+      https://www.ti.com/lit/gpn/tmp117
 
 maintainers:
   - Puranjay Mohan <puranjay12@gmail.com>