ALII-4689 - Only close lwip socket (lwip_close) and free CYASSL object (CyaSSL_free) once.

Signed-off-by: Mike Stitt <mikes@spindance.com>
Merge pull request #4 from spindance/bug/4689

ALII-4689 - Only close lwip socket (lwip_close) and free CYASSL object (...