ARM: dts: sun8i-r40: add opp table for cpu

OPP table value is get from allwinner lichee linux-3.10 kernel driver

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Tested-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220517013607.2252-3-qianfanguijin@163.com