Merge tag 'net-20250801' of https://source.denx.de/u-boot/custodians/u-boot-net

Pull request for net-20250801

net:
- Support overriding Auto Negotiation timeout with env variable
  'phy_aneg_timeout'
- Add missing virtqueue_kick() in free_pkt()
- Remove bcm281xx ethernet driver
- Tighten some network driver dependencies in Kconfig
- Add <cpu_func.h> to some platforms
- Fix a debug print in ftgmac100.cA
- Add parentheses around PSEUDO_HDR_SIZE

net-lwip:
- Fix build error with CONFIG_LWIP_DEBUG=y
- Remove eth_init() from net_init() as it is called later
- Simplify net_lwip_eth_start()

net-legacy:
- wget: Fix comparison of unsigned variable
- Incorrect macro used (TCP_0_NOP instead of TCP_1_NOP)