ARM: dts: rockchip: add more angle brackets to operating-points property on rk3066a

ARM: dts: rockchip: add more angle brackets to operating-points property on rk3066a

After the conversion to YAML of the Operating Performance Points(OPP)
binding the operating-points property expects values in
a uint32-matrix with 2 items, so fix the notifications by adding
angle brackets.

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/opp/opp-v1.yaml

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210828091233.19992-1-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>