MAINTAINERS: add 5 missing tcp-related files

Following files are part of TCP stack:

- net/ipv4/inet_connection_sock.c
- net/ipv4/inet_hashtables.c
- net/ipv4/inet_timewait_sock.c
- net/ipv6/inet6_connection_sock.c
- net/ipv6/inet6_hashtables.c

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240712234213.3178593-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

MAINTAINERS

@@ -15769,8 +15769,13 @@ F:	include/linux/tcp.h
 F:	include/net/tcp.h
 F:	include/trace/events/tcp.h
 F:	include/uapi/linux/tcp.h
+F:	net/ipv4/inet_connection_sock.c
+F:	net/ipv4/inet_hashtables.c
+F:	net/ipv4/inet_timewait_sock.c
 F:	net/ipv4/syncookies.c
 F:	net/ipv4/tcp*.c
+F:	net/ipv6/inet6_connection_sock.c
+F:	net/ipv6/inet6_hashtables.c
 F:	net/ipv6/syncookies.c
 F:	net/ipv6/tcp*.c