tcp: optimize inet_use_bhash2_on_bind()

There is no reason to call ipv6_addr_type().

Instead, use highly optimized ipv6_addr_any() and ipv6_addr_v4mapped().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250302124237.3913746-3-edumazet@google.com


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