pySim-read.py: Enable reading of Home Network Domain Name from ISIM

As per TS1.103 version 14.2.0, this EF contains the home operator's network domain name.
The Home Network Domain Name, i.e. FQDN shall be encoded to an octet string
according to UTF-8 encoding rules as specified in IETF RFC 3629

Change-Id: Ia3c68c717d105e10d52a8e9d170480da2ad7d65a
diff --git a/pysim-testdata/sysmoISIM-SJA2.ok b/pysim-testdata/sysmoISIM-SJA2.ok
index 03de57f..4cdd9d5 100644
--- a/pysim-testdata/sysmoISIM-SJA2.ok
+++ b/pysim-testdata/sysmoISIM-SJA2.ok
@@ -182,6 +182,7 @@
 	Not available
 	Not available
 
+Home Network Domain Name: Not available
 ISIM Service Table: 190200
 	Service 1 - P-CSCF address
 	Service 4 - GBA-based Local Key Establishment Mechanism