pySim-*.py: print info about selected reader interface

Change-Id: Idd791d7ef635e15915aab13274aefc15e70777b0
diff --git a/pysim-testdata/sysmoUSIM-SJS1.ok b/pysim-testdata/sysmoUSIM-SJS1.ok
index 275e79e..3bbdc90 100644
--- a/pysim-testdata/sysmoUSIM-SJS1.ok
+++ b/pysim-testdata/sysmoUSIM-SJS1.ok
@@ -1,3 +1,4 @@
+Using PC/SC reader (dev=0) interface
 Reading ...
 ICCID: 1122334455667788990
 IMSI: 001010000000102