device-tree: bindinds: add NXP PCT2075 as compatible device to LM75

The PCT2075 is compatible to other chips that are already handled by
the LM75 driver.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20190711124504.7580-1-daniel@zonque.orgSigned-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/hwmon/lm75.txt

@@ -15,6 +15,7 @@ Required properties:
 		"maxim,max31725",
 		"maxim,max31726",
 		"maxim,mcp980x",
+		"nxp,pct2075",
 		"st,stds75",
 		"st,stlm75",
 		"microchip,tcn75",