linux-phytec-fsl

ARM: dts: rockchip: remove soc subnodes

Comments received from the rk3288 submission indicated that a generic subnode
to group soc components should not be used.

So to keep all rockchip devicetree files similar, remove it from rk3066 and rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>