LS2088A and LS2080A are similar SoCs with a few differences like
ARM cores etc.

Reorganize the LS2080A device tree to move the common nodes to:
        - fsl-ls208xa.dtsi
        - fsl-ls208xa-rdb.dtsi
        - fsl-ls208xa-qds.dtsi
Signed-off-by: NPriyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: NAshish Kumar <ashish.kumar@nxp.com>
Signed-off-by: NAbhimanyu Saini <abhimanyu.saini@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>