PTP NXP MCXN: eth_nxp_enet_qos enable PTP hardware timestamping in driver

[theadib]

Is your enhancement proposal related to a problem? Please describe.

The current driver implementation for the eth_nxp_enet_qos driver does not implement time-stamping according PTP.

The driver is used for MCXN947 and so the supported board frdm_mcxn947.
The chip MCXN947 has build in PTP support. It was one of the points that I choose this specific NXP chip for new design.

Zephyr supports PTP on a numerous MCU but not this one so far.

Describe the solution you'd like
Please implement PTP for the eth_nxp_enet_qos driver.
The PTP time-stamping is implemented in the manufacturer SDK 25.3 that one can download.

There is PTP support on an other NXP eth driver: eth_nxp_enet
Maybe take some implementation ideas from that one.

Describe alternatives you've considered

Additional context