dts: bindings: can: deprecate the sjw and sjw-data properties

Update the descriptions for the various CAN devicetree timing properties
specified in Time Quanta (TQ) to make it clear that these, if present, are
only used for the initial timing parameters.

Deprecate the (Re-)Synchronization Jump Width (SJW) devicetree properties
for both arbitration and data phase timing as these are now only used in
combination with the other TQ-based CAN timing properties, which are all
deprecated.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>