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: NHeiko Stuebner <heiko@sntech.de>

Add the missing 'compatible' property to device tree root node of

 - rk3066a-bqcurie2.dts
 - rk3188-radxarock.dts

and document the new values.
Signed-off-by: NBeniamino Galvani <b.galvani@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

Basic devicetree files for the rk3188 SoC. Also provided is a board
dts file for the upcoming Radxa Rock board using this SoC.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>