arm64: dts: rockchip: fix compatible property for rk3399-evb

arm64: dts: rockchip: fix compatible property for rk3399-evb

A test with the command below gives this error:

arch/arm64/boot/dts/rockchip/rk3399-evb.dt.yaml: /: compatible:
['rockchip,rk3399-evb', 'rockchip,rk3399', 'google,rk3399evb-rev2']
is not valid under any of the given schemas

'google,rk3399evb-rev2' was a no longer used variant for Google.
The binding only mentions 'rockchip,rk3399-evb', 'rockchip,rk3399',
so fix this error by removing 'google,rk3399evb-rev2' from
the compatible property in rk3399-evb.dts and change it into
generic rk3399-evb support only.

make ARCH=arm64 dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/arm/rockchip.yaml

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200302092759.3291-3-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>