Replace left/right with start/end for Gravity / LayoutParams / Padding

- see bug #5429822 UI should be mirrored for RTL locales (Arabic, Hebrew, farsi)

Change-Id: Id9af5375fb9b0edeae5232c77e52ecd497bd2e67
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index be05cc7..db24c9c 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -7208,7 +7208,7 @@
         lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
         lp.width = WindowManager.LayoutParams.WRAP_CONTENT;
         lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
-        lp.gravity = Gravity.BOTTOM | Gravity.LEFT;
+        lp.gravity = Gravity.BOTTOM | Gravity.START;
         lp.format = v.getBackground().getOpacity();
         lp.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                 | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;