[PATCH] ARM: dts: ls1021a: Add support for QSPI with ls1021a SoC

[SZ Lin (林上智)]

> Add QSPI node support, and this function is disabled by default
> This setting could be overwritten in board-level definitions
> 
> Signed-off-by: SZ Lin <sz.lin at moxa.com>
> ---

Any feedback?

Best regards,
SZ Lin