Merge branch 'net-airoha-add-per-flow-stats-support-to-hw-flowtable-offloading'

Lorenzo Bianconi says:

====================
net: airoha: Add per-flow stats support to hw flowtable offloading

Introduce per-flow stats accounting to the flowtable hw offload in the
airoha_eth driver. Flow stats are split in the PPE and NPU modules:
- PPE: accounts for high 32bit of per-flow stats
- NPU: accounts for low 32bit of per-flow stats

v1: https://lore.kernel.org/20250514-airoha-en7581-flowstats-v1-0-c00ede12a2ca@kernel.org
====================

Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-0-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>