Stk: Handle Null Alpha Identifer for Setup Call

- Per specification 102223 section 6.4.13:
  If the first alpha identifier is not provided by the UICC
  or is a null data object (ie. length is zero and has no
  value part) , the default setup call message is sent.

Bug: 17646476
Change-Id: Ic978b262b41e8bd811fb87c2194830942594d5c8
2 files changed