crypto: chtls - structure and macro for Inline TLS

Define Inline TLS state, connection management info.
Supporting macros definition.

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Reviewed-by: Michael Werner <werner@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>