dt-bindings: display: Document BOE BF060Y8M-AJ0 panel compatible

Document the boe,bf060y8m-aj0 panel.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210901173115.998628-2-angelogioacchino.delregno@somainline.org