Merge branch 'selftests-drv-net-tso-fix-issues-with-tso-selftest'

Daniel Zahka says:

====================
selftests: drv-net: tso: fix issues with tso selftest

There are a couple issues with the tso selftest.

 - Features required for test cases are detected by searching the set
   of active features at test start, so if a feature is supported by
   hw, but disabled, the test will report that the feature under test
   is not available and fail.
 - The vxlan test cases do not use the correct ip link flags based on
   the gso feature under test
 - The non-tunneled tso6 test case is showing up with the wrong name.

With all patches applied test output is:

  # Detected qstat for LSO wire-packets
  TAP version 13
  1..14
  ok 1 tso.ipv4
  # Testing with mangleid enabled
  ok 2 tso.vxlan4_ipv4
  ok 3 tso.vxlan4_ipv6
  # Testing with mangleid enabled
  ok 4 tso.vxlan_csum4_ipv4
  ok 5 tso.vxlan_csum4_ipv6
  # Testing with mangleid enabled
  ok 6 tso.gre4_ipv4
  ok 7 tso.gre4_ipv6
  ok 8 tso.ipv6
  # Testing with mangleid enabled
  ok 9 tso.vxlan6_ipv4
  ok 10 tso.vxlan6_ipv6
  # Testing with mangleid enabled
  ok 11 tso.vxlan_csum6_ipv4
  ok 12 tso.vxlan_csum6_ipv6
  # Testing with mangleid enabled
  ok 13 tso.gre6_ipv4
  ok 14 tso.gre6_ipv6
  # Totals: pass:14 fail:0 xfail:0 xpass:0 skip:0 error:0
====================

Link: https://patch.msgid.link/20250723184740.4075410-1-daniel.zahka@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>