This adds an implementation of the GlobalPlatform SCP03 protocol. It has been tested in S8 mode for C-MAC, C-ENC, R-MAC and R-ENC with AES using 128, 192 and 256 bit key lengh. Test vectors generated while talking to a sysmoEUICC1-C2T are included as unit tests. Change-Id: Ibc35af5474923aed2e3bcb29c8d713b4127a160d