Make STEM_PRIMARY Key a wake key.

TEST: Tested on Salmon locally. Video: https://photos.app.goo.gl/YhjdQpbpiXi9tnBL8
Bug: b/175741447
Change-Id: Ibe1a95f910497fb58ec093695cd2a96e43d0b485
(cherry picked from commit ffe4c6a1d5e06105b7614a7d437df65d5e3c798e)
(cherry picked from commit cc1fc99392b929c8c7cb3fc5ab8ae34a4a07025b)

core/java/android/view/KeyEvent.java

@@ -2066,6 +2066,7 @@ public class KeyEvent extends InputEvent implements Parcelable {
             case KeyEvent.KEYCODE_STEM_2:
             case KeyEvent.KEYCODE_STEM_3:
             case KeyEvent.KEYCODE_WAKEUP:
+            case KeyEvent.KEYCODE_STEM_PRIMARY:
                 return true;
         }
         return false;