dt-bindings: trivial-devices: Deprecate "ad,ad7414"

The correct vendor prefix for Analog Devices is "adi", not "ad". Both
forms are in use. Add the "adi,ad7414" version and deprecate the
"ad,ad7414" version.

Keep them together even though it breaks strict alphabetical ordering.

Link: https://lore.kernel.org/r/20240903-dt-trivial-devices-v1-2-ad684c754b9c@kernel.orgSigned-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -33,7 +33,8 @@ properties:
             # Acbel fsg032 power supply
           - acbel,fsg032
             # SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
-          - ad,ad7414
+          - ad,ad7414  # Deprecated, use adi,ad7414
+          - adi,ad7414
             # ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems
           - ad,adm9240
             # AD5110 - Nonvolatile Digital Potentiometer