dt-bindings: display: bridge: tc358775: Add support for tc358765

The tc358765 is similar to tc358775. The tc358765 just an earlier version
of the hardware, and it's pin and register compatible with tc358775 for
most part.

From the binding point of view the only difference is that the tc358765
does not have stdby-gpios.

Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Tony Lindgren <[e-mail]>
Signed-off-by: Robert Foss <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml

···
   - Vinay Simha BN <[e-mail]>
 
 description: |
-  This binding supports DSI to LVDS bridge TC358775
+  This binding supports DSI to LVDS bridges TC358765 and TC358775
 
   MIPI DSI-RX Data 4-lane, CLK 1-lane with data rates up to 800 Mbps/lane.
   Video frame size:
···
 
 properties:
   compatible:
-    const: toshiba,tc358775
+    enum:
+      - toshiba,tc358765
+      - toshiba,tc358775
 
   reg:
     maxItems: 1
···
   - vddio-supply
   - reset-gpios
   - ports
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: toshiba,tc358765
+    then:
+      properties:
+        stby-gpios: false
 
 additionalProperties: false