A11y: Prefer EXTRA_TITLE to ticker for status bar icon content description

Change-Id: I08d5439f0f593d32044d5a59fc7b8f24e33a15a9
Test: manual - post notification, check that Talkback utterance is correct on status bar icon.
Fixes: 30739573
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
index 1101701..b9c8a78 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
@@ -455,8 +455,8 @@
         CharSequence title = n.extras.getCharSequence(Notification.EXTRA_TITLE);
         CharSequence ticker = n.tickerText;
 
-        CharSequence desc = !TextUtils.isEmpty(ticker) ? ticker
-                : !TextUtils.isEmpty(title) ? title : "";
+        CharSequence desc = !TextUtils.isEmpty(title) ? title
+                : !TextUtils.isEmpty(ticker) ? ticker : "";
 
         return c.getString(R.string.accessibility_desc_notification_icon, appName, desc);
     }