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