dt-bindings:iio:pressure:ms5637 Drop separate doc + add to trivial-devices

Very simple binding for this i2c device with no properties beyond
reg and compatible.  Hence doesn't need it's own document.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201031134110.724233-6-jic23@kernel.org

Documentation/devicetree/bindings/iio/pressure/ms5637.txt

-* MS5637 - Measurement-Specialties MS5637, MS5805, MS5837 and MS8607 pressure & temperature sensor
-
-Required properties:
-
-	-compatible: should be one of the following
-		meas,ms5637
-		meas,ms5805
-		meas,ms5837
-		meas,ms8607-temppressure
-	-reg: I2C address of the sensor
-
-Example:
-
-ms5637@76 {
-	compatible = "meas,ms5637";
-	reg = <0x76>;
-};

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -130,8 +130,16 @@ properties:
           - memsic,mxc6225
             # Measurement Specialities I2C temperature and humidity sensor
           - meas,htu21
+            # Measurement Specialities I2C pressure and temperature sensor
+          - meas,ms5637
+            # Measurement Specialities I2C pressure and temperature sensor
+          - meas,ms5805
+            # Measurement Specialities I2C pressure and temperature sensor
+          - meas,ms5837
             # Measurement Specialities temp and humidity part of ms8607 device
           - meas,ms8607-humidity
+            # Measurement Specialities temp and pressure part of ms8607 device
+          - meas,ms8607-temppressure
             # Microchip differential I2C ADC, 1 Channel, 18 bit
           - microchip,mcp3421
             # Microchip differential I2C ADC, 2 Channel, 18 bit