Set actual call forwarding enable status

After get call forwarding status, it always set call forwarding
enable status as true instead of the actual enable status. This
is incorrect, so set CallForwardingInfo according to the actual
enable status of callForwardInfo.

Test: auto - Passed TelephonyManagerTest
Bug: 201490546

Change-Id: Ie59a062db2d03f6899a12b7a4548fa7fc97256d7
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index db14924..e59d91a 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -1009,7 +1009,9 @@
                             // any service for voice call.
                             if ((callForwardInfo.serviceClass
                                     & CommandsInterface.SERVICE_CLASS_VOICE) > 0) {
-                                callForwardingInfo = new CallForwardingInfo(true,
+                                callForwardingInfo = new CallForwardingInfo(
+                                        callForwardInfo.status
+                                                == CommandsInterface.CF_ACTION_ENABLE,
                                         callForwardInfo.reason,
                                         callForwardInfo.number,
                                         callForwardInfo.timeSeconds);