[tcat] initial commit of bluetooth-based commissioning (#9210)

This commit introduces first implementation of Bluetooth based
comissioning for thread devices.

Co-authored-by: Arnulf Rupp <[email protected]>
Co-authored-by: Piotr Jasinski <[email protected]>

src/core/thread/tmf.cpp

@@ -271,7 +271,7 @@ Message::Priority Agent::DscpToPriority(uint8_t aDscp)
     return priority;
 }
 
-#if OPENTHREAD_CONFIG_DTLS_ENABLE
+#if OPENTHREAD_CONFIG_SECURE_TRANSPORT_ENABLE
 
 SecureAgent::SecureAgent(Instance &aInstance)
     : Coap::CoapSecure(aInstance)
@@ -329,7 +329,7 @@ bool SecureAgent::HandleResource(const char *aUriPath, Message &aMessage, const
     return didHandle;
 }
 
-#endif // OPENTHREAD_CONFIG_DTLS_ENABLE
+#endif // OPENTHREAD_CONFIG_SECURE_TRANSPORT_ENABLE
 
 } // namespace Tmf
 } // namespace ot