pySim-read.py: Enabled reading P-CSCF address from ISIM

As per 3GPP TS 31.103 version 14.2.0 Release 14, this EF can found under ADF.ISIM at File Id 6f09.

This EF contains one or more Proxy Call Session Control Function addresses.
The first record in the EF shall be considered to be of the highest priority
If ISIM service n°1 and/or service n°5 is available, this file shall be present.

Change-Id: I7a701212c84d3dc5d4c8ccbcf638c97ceda33654
diff --git a/pysim-testdata/sysmoISIM-SJA2.ok b/pysim-testdata/sysmoISIM-SJA2.ok
index 94c4328..03de57f 100644
--- a/pysim-testdata/sysmoISIM-SJA2.ok
+++ b/pysim-testdata/sysmoISIM-SJA2.ok
@@ -172,6 +172,16 @@
 	ffffffffffff # unused
 	ffffffffffff # unused
 
+P-CSCF:
+	Not available
+	Not available
+	Not available
+	Not available
+	Not available
+	Not available
+	Not available
+	Not available
+
 ISIM Service Table: 190200
 	Service 1 - P-CSCF address
 	Service 4 - GBA-based Local Key Establishment Mechanism