ARM: dts: rockchip: Drop redundant CPU "clock-latency"

ARM: dts: rockchip: Drop redundant CPU "clock-latency"

The "clock-latency" property is part of the deprecated opp-v1 binding
and is redundant if the opp-v2 table has equal or larger values in any
"clock-latency-ns". Add any missing "clock-latency-ns" properties and
remove "clock-latency".

Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250410-dt-cpu-schema-v2-10-63d7dc9ddd0a@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>