dt-bindings: Add W83773G as a trivial device

Signed-off-by: Lei YU <mine260309@gmail.com>
[robh: improve commit subject]
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/trivial-devices.txt

@@ -151,6 +151,7 @@ national,lm85		Temperature sensor with integrated fan control
 national,lm92		±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
 nuvoton,npct501		i2c trusted platform module (TPM)
 nuvoton,npct601		i2c trusted platform module (TPM2)
+nuvoton,w83773g		Nuvoton Temperature Sensor
 nxp,pca9556		Octal SMBus and I2C registered interface
 nxp,pca9557		8-bit I2C-bus and SMBus I/O port with reset
 nxp,pcf2127		Real-time clock