dts: nrf52811: fix indendation in dtsi

Commit 233149eec5eb164abdeee4f3ff327fda976c37fc moved flash sram nodes
under /soc for various nordic ICs, but the indentation isn't right for
52811. Fix it.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
1 file changed