dt-bindings: trivial-devices: Add Infineon SLB9673 TPM

Initial device to be supported by the upcoming tpm_tis_i2c driver. More
to be added later.

Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

Author: webmeister

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -141,6 +141,8 @@ properties:
           - infineon,slb9635tt
             # Infineon SLB9645 I2C TPM (new protocol, max 400khz)
           - infineon,slb9645tt
+            # Infineon SLB9673 I2C TPM 2.0
+          - infineon,slb9673
             # Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor
           - infineon,tlv493d-a1b6
             # Infineon Multi-phase Digital VR Controller xdpe11280