The OV5695 binding is almost the same as the OV5693 binding. The only
difference is 'clock-names' is defined for OV5695. However, the lack of
clock-names is an omission as the Linux OV5693 driver expects the same
'xvclk' clock name.

'link-frequencies' is required by OV5693, but not OV5695, so make that
conditional. Really, this shouldn't vary by device, but we're stuck with
the existing binding use.

The rockchip-isp1 binding example is missing required properties, so it
has to be updated as well.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230817202647.2179609-1-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>