dts: bindings: can: deprecate advanced CAN timing properties

Deprecate the advanced CAN timing devicetree properties in favor of setting
advanced timing parameters from application code.

The advanced timing properties are giving in number of time quanta (Tq) and
requires reverse-calculation to find a suitable CAN clock divider. The
resulting bitrate error is compared against a threshold in the driver
initialization code, but the application is not able to retrieve it.

Forcing applications to use the CAN timing APIs directly instead makes it
up to the application to determine if the bitrate error is acceptable or
not.

The deprecated properties are:
- prop-seg
- phase-seg1
- phase-seg2
- prop-seg-data
- phase-seg1-data
- phase-seg2-data

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