Updating mbed-client-classic.lib with Nanostack IPv6 fix
Updating mbed-client-classic.lib with Nanostack IPv6 fix

ARMmbed/mbed-client,tridonic-com/mbed-client,tridonic-com/mbed-client,ARMmbed/mbed-client,tridonic-com/mbed-client,ARMmbed/mbed-client