Merge branch 'octeontx2-af-npc-enhancements'

Ratheesh Kannoth says:

====================
octeontx2-af: npc: Enhancements. [part]

Patch 1 reduces stack usage in mlx5e_pcie_cong_get_thresh_config()
by reusing a single union devlink_param_value across four
devl_param_driverinit_value_get() calls (instead of
union devlink_param_value val[4] on the stack) and assigning each
vu16 into mlx5e_pcie_cong_thresh, so the helper stays under the
frame-size warning limit as the union grows.

Patch 2 changes devlink_nl_param_value_put() and
devlink_nl_param_value_fill_one() to pass union devlink_param_value
by pointer instead of by value. Passing two copies of the union
by value in the param netlink path consumes over 500 bytes of argument
stack and risks CONFIG_FRAME_WARN as the union grows beyond its
historical size.
====================

Picking a couple of uncontroversial changes from the series
since it's making very slow progress.

Link: https://patch.msgid.link/20260521095303.2395584-1-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>