Merge branch 'net-macb-remove-dedicated-irq-handler-for-wol'

Kevin Hao says:

====================
net: macb: Remove dedicated IRQ handler for WoL

During debugging of a suspend/resume issue, I observed that the macb driver
employs a dedicated IRQ handler for Wake-on-LAN (WoL) support. To my knowledge,
no other Ethernet driver adopts this approach. This implementation unnecessarily
complicates the suspend/resume process without providing any clear benefit.
Instead, we can easily modify the existing IRQ handler to manage WoL events,
avoiding any overhead in the TX/RX hot path.

The net throughput shows no significant difference following these changes.
The following data(net throughput and execution time of macb_interrupt) were
collected from my AMD Zynqmp board using the commands:
  taskset -c 1,2,3 iperf3 -c 192.168.3.4 -t 60 -Z -P 3 -R
  cat /sys/kernel/debug/tracing/trace_stat/function0

Before:
-------
  [SUM]   0.00-60.00  sec  5.99 GBytes   858 Mbits/sec    0             sender
  [SUM]   0.00-60.00  sec  5.99 GBytes   857 Mbits/sec                  receiver

  Function                               Hit    Time            Avg             s^2
  --------                               ---    ----            ---             ---
  macb_interrupt                      217996    678425.2 us     3.112 us        1.446 us

After:
------
  [SUM]   0.00-60.00  sec  6.00 GBytes   858 Mbits/sec    0             sender
  [SUM]   0.00-60.00  sec  5.99 GBytes   857 Mbits/sec                  receiver

  Function                               Hit    Time            Avg             s^2
  --------                               ---    ----            ---             ---
  macb_interrupt                      218212    668107.3 us     3.061 us        1.413 us
====================

Link: https://patch.msgid.link/20260402-macb-irq-v2-0-942d98ab1154@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>