hlr: add TC_gsup_sai_num_auth_vectors

TC_gsup_sai_num_auth_vectors tests the GSUP IE
GSUP_IE_NUM_VECTORS_REQ which allows the client to
ask for a specific amount of auth tuples in a
Send Auth Info request.

Change-Id: I10a523cbaf08fe42924ffd0dc498496fdc76395f
1 file changed