tcp: Fix data-races around sysctltcpminsndmss.
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.208 by commit fdb96b69f5909ffcdd6f1e0902219fc6d7689ff7, it was introduced in version v5.2 by commit 5f3e2bf008c2221478101ee72f5cb4654b9fc363. For more details please see the references link.