ptp: ocp: Add support for Xilinx-based Adva TimeCard variant

ptp: ocp: Add support for Xilinx-based Adva TimeCard variant

Add support for the Adva TimeCard model built on a Xilinx-based design.
This patch enables detection and integration of the new hardware within
the existing OCP timecard framework.
The Xilinx variant relies on the shared driver infrastructure, requiring
only small, targeted additions to accommodate its specific
characteristics.

Signed-off-by: Sagi Maimon <maimon.sagi@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20260312082009.249622-1-maimon.sagi@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>