Merge branch 'net-freescale-migrate-to-get_rx_ring_count-ethtool-callback'

Breno Leitao says:

====================
net: freescale: migrate to .get_rx_ring_count() ethtool callback

This series migrates Freescale network drivers to use the new .get_rx_ring_count()
ethtool callback introduced in commit 84eaf4359c36 ("net: ethtool: add
get_rx_ring_count callback to optimize RX ring queries").

The new callback simplifies the .get_rxnfc() implementation by removing
ETHTOOL_GRXRINGS handling and moving it to a dedicated callback. This provides
a cleaner separation of concerns and aligns these drivers with the modern
ethtool API.

The series updates the following Freescale drivers:
  - enetc
  - dppa2
  - gianfar
====================

Link: https://patch.msgid.link/20251128-gxring_freescale-v1-0-22a978abf29e@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>