Merge branch 'tcp-move-some-fastpath-fields-to-appropriate-groups'

Eric Dumazet says:

====================
tcp: move some fastpath fields to appropriate groups

Move following fields to better groups to increase data locality.

- delivered
- delivered_ce
- segs_in
- segs_out
- first_tx_mstamp
- delivered_mstamp
- max_packets_out
- cwnd_usage_seq
- rate_delivered
- rate_interval_us

No change in overall tcp_sock size.
====================

Link: https://patch.msgid.link/20260430100021.211139-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>