IPAd: Add TERMINAL CAPABILITIES request (IoT Device Capabilites)
In order to activate IoT functions on eUICC, IPAd will send a TERMINAL
CAPABILITIES request. This has to be answered by the testsuite.
Related: SYS#8101
Change-Id: I0a6d8d6bb6eb0ee30e14afdb5e4ce37af0ae711e
