dt-bindings: display: panel: samsung,atna45dc02: Fix indentation

The yaml had indentation errors:
  ./Documentation/devicetree/bindings/display/panel/samsung,atna33xc20.yaml:21:9:
  [warning] wrong indentation: expected 10 but found 8 (indentation)
  ./Documentation/devicetree/bindings/display/panel/samsung,atna33xc20.yaml:23:11:
  [warning] wrong indentation: expected 12 but found 10 (indentation)

Fix them.
Reported-by: Rob Herring <robh@kernel.org>
Closes: https://lore.kernel.org/r/CAL_JsqLRTgQRPcfXy4G9hLoHMd-Uax4_C90BV_OZn4mK+-82kw@mail.gmail.com
Fixes: 1c4a057d ("dt-bindings: display: panel: samsung,atna45dc02: Document ATNA45DC02")
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240808114407.1.I099e8e9e36407a0785d846b953031d40ea71e559@changeid

Documentation/devicetree/bindings/display/panel/samsung,atna33xc20.yaml

@@ -18,12 +18,12 @@ properties:
       # Samsung 13.3" FHD (1920x1080 pixels) eDP AMOLED panel
       - const: samsung,atna33xc20
       - items:
-        - enum:
-          # Samsung 14.5" WQXGA+ (2880x1800 pixels) eDP AMOLED panel
-          - samsung,atna45af01
-          # Samsung 14.5" 3K (2944x1840 pixels) eDP AMOLED panel
-          - samsung,atna45dc02
-        - const: samsung,atna33xc20
+          - enum:
+              # Samsung 14.5" WQXGA+ (2880x1800 pixels) eDP AMOLED panel
+              - samsung,atna45af01
+              # Samsung 14.5" 3K (2944x1840 pixels) eDP AMOLED panel
+              - samsung,atna45dc02
+          - const: samsung,atna33xc20
 
   enable-gpios: true
   port: true