Interworking: Document network selection parameters

wpa_supplicant/wpa_supplicant.conf

@@ -239,6 +239,24 @@ fast_reauth=1
 # is enabled.
 # hessid=00:11:22:33:44:55
 
+# Home Realm for Interworking
+#home_realm=example.com
+
+# Username for Interworking network selection
+#home_username=user
+
+# Password for Interworking network selection
+#home_password=secret
+
+# CA certificate for Interworking network selection
+#home_ca_cert=/etc/cert/ca.pem
+
+# IMSI in <MCC> | <MNC> | '-' | <MSIN> format
+#home_imsi=232010000000000
+
+# Milenage parameters for SIM/USIM simulator in <Ki>:<OPc>:<SQN> format
+#home_milenage=90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581:000000000123
+
 # network block
 #
 # Each network (usually AP's sharing the same SSID) is configured as a separate