dt-bindings: display: himax-hx8394: Add Microchip AC40T08A MIPI Display panel

Add compatible string for the Microchip's AC40T08A MIPI Display
panel.This panel uses a Himax HX8394 display controller.

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Hari Prasath Gujulan Elango <hari.prasathge@microchip.com>

Author: manikandan-m11

Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml

@@ -23,6 +23,7 @@ properties:
     items:
       - enum:
           - hannstar,hsd060bhw4
+          - microchip,ac40t08a-mipi-panel
       - const: himax,hx8394
 
   reg: true