rockchip: rk3328: add SPL support

Add SPL support for rk3328, default with of-platdata enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
[cherry picked from https://github.com/rockchip-linux/u-boot/commit/cb2b7a1bc75ebb116b1eb9b0ae0223e84d86fc4b with minor modifications]
Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed