pySim/euicc: fix encoding/decoding of Iccid

The class Iccid uses a BcdAdapter to encoded/decode the ICCID. This
works fine for ICCIDs that have an even (20) number of digits. In case
the digit count is odd (19), the ICCID the last digit requires padding.

Let's switch to PaddedBcdAdapter for encoding/decoding, to ensure that
odd-length ICCIDs are padded automatically.

Change-Id: I527a44ba454656a0d682ceb590eec6d9d0ac883a
Related: OS#6868

tests/pySim-shell_test/euicc/get_profiles_info.ok

@@ -15,7 +15,7 @@
         },
         {
             "profile_info": {
-                "iccid": "8949449999999990031f",
+                "iccid": "8949449999999990031",
                 "isdp_aid": "a0000005591010ffffffff8900001200",
                 "profile_state": "disabled",
                 "service_provider_name": "OsmocomSPN",

tests/pySim-shell_test/euicc/test.py

@@ -23,7 +23,7 @@ import os
 import json
 from utils import *
 
-# This testcase requires a sysmoEUICC1-C2T with the test prfile TS48V1-B-UNIQUE (ICCID 8949449999999990031f)
+# This testcase requires a sysmoEUICC1-C2T with the test prfile TS48V1-B-UNIQUE (ICCID 8949449999999990031)
 # installed, and in disabled state. Also the profile must be installed in such a way that notifications are
 # generated when the profile is disabled or enabled (ProfileMetadata)
 

tests/pySim-shell_test/euicc/test_gen_notif.script

@@ -4,5 +4,5 @@ set echo true
 select ADF.ISD-R
 
 # Generate two (additional) notifications by quickly enabeling the test profile
-enable_profile --iccid 8949449999999990031f
+enable_profile --iccid 8949449999999990031
 enable_profile --iccid 89000123456789012341