sysmoISIM-SJA2: Add support for programming Home ePDG Identifier

Example:

./pySim-prog.py -p 0 -x 001 -y 01 -s 8988211900000000004 -i 001011234567895 \
	-k 8baf473f2f8fd09487cccbd7097c6862 --op 11111111111111111111111111111111 \
	-o 8E27B6AF0E692E750F32667A3B14605D -a 85524953 -n isim.test \
        --msisdn 0598765432100 --epdgid epdg.epc.mnc001.mcc001.pub.3gppnetwork.org

Note:

1. For Operator Identifier based ePDG FQDN must be in the format

epdg.epc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org

2. For Tracking/Location Area Identity based ePDG FQDN must be in format

lac<LAC>.epdg.epc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org

and

tac-lb<TAC-low-byte>.tac-hb<TAC-high-byte>.tac.epdg.epc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org

and

3. For 5GS Tracking Area Identity based ePDG FQDN using a 3 octet TAC

tac-lb<TAC-low-byte>.tac-mb<TAC-middle-byte>.tac-hb<TAC-high-byte>.5gstac. epdg.epc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org

Change-Id: Ia00bfea36c50b6a38a5387d2f8147f25c81b1de4
diff --git a/pySim-prog.py b/pySim-prog.py
index 601f980..8547573 100755
--- a/pySim-prog.py
+++ b/pySim-prog.py
@@ -147,6 +147,9 @@
 	parser.add_option("--acc", dest="acc",
 			help="Set ACC bits (Access Control Code). not all card types are supported",
 		)
+	parser.add_option("--epdgid", dest="epdgid",
+			help="Set Home Evolved Packet Data Gateway (ePDG) Identifier. (Only FQDN format supported)",
+		)
 	parser.add_option("--read-imsi", dest="read_imsi", action="store_true",
 			help="Read the IMSI from the CARD", default=False
 		)
@@ -442,6 +445,7 @@
 		'acc'	: acc,
 		'pin_adm' : pin_adm,
 		'msisdn' : opts.msisdn,
+		'epdgid' : opts.epdgid,
 	}