media: dt-bindings: media: venus: Add sdm845v2 DT schema

Add new qcom,sdm845-venus-v2 DT binding schema.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>