dt-bindings: iio: adc: ad7768-1: add new supported parts

Add compatibles for supported parts in the ad7768-1 family:
	ADAQ7767-1, ADAQ7768-1 and ADAQ7769-1

Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>

Author: jonathanns

Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml

@@ -1,21 +1,30 @@
 # SPDX-License-Identifier: GPL-2.0
+# Copyright 2024 Analog Devices Inc.
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Analog Devices AD7768-1 ADC device driver
+title: Analog Devices AD7768-1 ADC family device driver
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
 
 description: |
-  Datasheet at:
-    https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
+  Analog Devices AD7768-1 24-Bit Single Channel Low Power sigma-delta ADC family
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7767-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7768-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7769-1.pdf
 
 properties:
   compatible:
-    const: adi,ad7768-1
+    enum:
+      - adi,ad7768-1
+      - adi,adaq7767-1
+      - adi,adaq7768-1
+      - adi,adaq7769-1
 
   reg:
     maxItems: 1