pySim-*.py: Set shebang to use python v2

Nowadays bin/python usually points to python3, and this script is written
in python2, which means if run directly from terminal it will fail with
some print syntax errors.

Change-Id: I6ab4e9edc44a8045915d4828c6de2fa98027fb7e

pySim-prog.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 #
 # Utility to deal with sim cards and program the 'magic' ones easily

pySim-read.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 #
 # Utility to display some informations about a SIM card