Merge branch 'net-stmmac-fixes-for-stmmac-tx-vlan-insert-and-est'

Rohan G Thomas says:

====================
net: stmmac: Fixes for stmmac Tx VLAN insert and EST

This patchset includes following fixes for stmmac Tx VLAN insert and
EST implementations:
   1. Disable STAG insertion offloading, as DWMAC IPs doesn't support
      offload of STAG for double VLAN packets and CTAG for single VLAN
      packets when using the same register configuration. The current
      configuration in the driver is undocumented and is adding an
      additional 802.1Q tag with VLAN ID 0 for double VLAN packets.
   2. Consider Tx VLAN offload tag length for maxSDU estimation.
   3. Fix GCL bounds check
====================

Link: https://patch.msgid.link/20251028-qbv-fixes-v4-0-26481c7634e3@altera.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>