dt-bindings: clock: qcom: Add SM8450 video clock controller

Add device tree bindings for the video clock controller on Qualcomm
SM8450 platform.

Signed-off-by: Taniya Das <quic_tdas@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230524140656.7076-2-quic_tdas@quicinc.com