ARM: dts: am335x-evmsk: Whitespace cleanup of lcdc related nodes

Whitespace cleanup of lcdc related nodes. Do all indentation and
alignment with tabs instead of spaces.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>