pySim-read.py: support for reading GID2 from SIM

Change-Id: I0e893c3929aa1be6b55af296484811a7b94db560
diff --git a/pysim-testdata/sysmoUSIM-SJS1.ok b/pysim-testdata/sysmoUSIM-SJS1.ok
index 113ed14..83a8e9e 100644
--- a/pysim-testdata/sysmoUSIM-SJS1.ok
+++ b/pysim-testdata/sysmoUSIM-SJS1.ok
@@ -3,6 +3,7 @@
 ICCID: 1122334455667788990
 IMSI: 001010000000102
 GID1: ffffffffffffffffffff
+GID2: ffffffffffffffffffff
 SMSP: ffffffffffffffffffffffffffffffffffffffffffffffffe1ffffffffffffffffffffffff0581005155f5ffffffffffff000000
 SPN: Magic
 Display HPLMN: True