Documentation: fsl: dspi: Add fsl,ls2080a-dspi compatible string

new compatible string: "fsl,ls2080a-dspi".

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
1 file changed