net: sockets: introduce NET_SOCKETS_OFFLOAD_PRIORITY option
net: sockets: introduce NET_SOCKETS_OFFLOAD_PRIORITY option

This option will be used as default socket priority by offloaded socket
drivers.

Describe how to prioritize native TLS over offloaded TLS (and vice
versa) using sockets priorities.

Signed-off-by: Marcin Niestroj <63506c06cfbc47ace147db1702f6e751f5ac2132@grinn-global.com>

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