Restore dumpsys iphonesubinfo

When Multi SIM was implemented, that broke dumpsys for several
telephony related services. The class that registers the service
does not override dump, though, but the info is available
in PhoneFactory and can be dumped via TelephonyDebugService.

Note: This change only fixes iphonesubinfo. Imms, isms and others are
still broken.

Change-Id: Ie5b8600c40b07c49c28b3df8a3c0d56527434710
diff --git a/src/java/com/android/internal/telephony/PhoneFactory.java b/src/java/com/android/internal/telephony/PhoneFactory.java
index 0543151..f4c4341 100644
--- a/src/java/com/android/internal/telephony/PhoneFactory.java
+++ b/src/java/com/android/internal/telephony/PhoneFactory.java
@@ -485,6 +485,14 @@
             }
             pw.flush();
             pw.println("++++++++++++++++++++++++++++++++");
+
+            try {
+                phoneProxy.getPhoneSubInfo().dump(fd, pw, args);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            pw.flush();
+            pw.println("++++++++++++++++++++++++++++++++");
         }
 
         try {