Sending email SMTP protocol - 3.5.2, TLS context not initializing

[MiDe_2164101]

Another issue in my change to 3.5.2 was that my 'send email' using gmail with TLS didn't work anymore.  Seems like the library is missing a call to wiced_tls_init_context.

In any case, if anybody else has this issue i've attached a patch.  Or if anybody has a better suggestion.

[VikramR_26]

Thanks for helping, this fix is included and will be present in our next SDK release.

[AxLi_1746341]

FYI, A NULL check for tls_context is missed after tls_context = MALLOC_OBJECT().