FM: Fix the issue with FM audio while active call

- Audio focus listener is failed register during active call.
- Exit the FM application, if user open the FM during active call.

Change-Id: Ib528090c3095f26b783a60520a107d13f23f343f
CRs-Fixed: 635660
diff --git a/fmapp2/src/com/caf/fmradio/FMRadio.java b/fmapp2/src/com/caf/fmradio/FMRadio.java
index 870df8c..d8cdab3 100644
--- a/fmapp2/src/com/caf/fmradio/FMRadio.java
+++ b/fmapp2/src/com/caf/fmradio/FMRadio.java
@@ -1386,6 +1386,7 @@
                                                            int whichButton) {
                                           removeDialog(DIALOG_CMD_TIMEOUT);
                                           mCommandFailed = CMD_NONE;
+                                          finish();
                                        }
                                     });