Add ifdef the code which utilizes TLS-supported APIs

Add ifdef the code which utilizes TLS-supported APIs

provisionTrustCertChain API of Provisioning Manager is ONLY defined where TLS is supported. In easy setup, that API is used for transferring a certificate to Enrollee. So if TLS is not supported, this procedure SHOULD be skiped and not defined, even.

Change-Id: I2006d2025c794aab616cea8fb3e6144cace86b49
Signed-off-by: Heewon Park <h_w.park@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/11263
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jihun Ha <jihun.ha@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: Uze Choi <uzchoi@samsung.com>