rockchip: dts: rk3328: fix sdram params

The rk3328 sdram driver read sdram parameters from the devicetree into a
struct rk3328_sdram_params using dev_read_u32_array.

After commit 5ab30c31 ("ram: rockchip: Update ddr pctl regs for px30")
changed the size of struct ddr_pctl_regs, a member of struct
rk3328_sdram_params, U-Boot TPL can no longer initialize DRAM on RK3328.

Add ten u32 to the sdram parameter array in devicetree to align with
this size change. This fixes DRAM initialization on RK3328.

Fixes: 5ab30c31 ("ram: rockchip: Update ddr pctl regs for px30")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # roc-rk3328-cc