Add new refresh key constant.

Bug: 64149858
Bug: 64662317
Test: Builds and manual tests with Chromebook.

Change-Id: I02f890375f1a956867b04bf76f69d668fb3a7f98
diff --git a/include/android/keycodes.h b/include/android/keycodes.h
index 2164d61..59d67f3 100644
--- a/include/android/keycodes.h
+++ b/include/android/keycodes.h
@@ -767,7 +767,9 @@
     /** fingerprint navigation key, right. */
     AKEYCODE_SYSTEM_NAVIGATION_RIGHT = 283,
     /** all apps */
-    AKEYCODE_ALL_APPS = 284
+    AKEYCODE_ALL_APPS = 284,
+    /** refresh key */
+    AKEYCODE_REFRESH = 285
 
     // NOTE: If you add a new keycode here you must also add it to several other files.
     //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.