New unit test for XOR-2G authentication

Let's test if the XOR-2G algorithm does what it's supposed to do.

Change-Id: I7014258751624ff18c51912b6348c3cd876bb23f
diff --git a/tests/auth/xor2g_test.ok b/tests/auth/xor2g_test.ok
new file mode 100644
index 0000000..58becf6
--- /dev/null
+++ b/tests/auth/xor2g_test.ok
@@ -0,0 +1,6 @@
+RAND:	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
+SRES:	00 01 02 03 
+Kc:	04 05 06 07 08 09 0a 0b 
+RAND:	00 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 
+SRES:	00 11 22 33 
+Kc:	44 55 66 77 88 99 aa bb