Fix bug #6638582 Password fields appears RTL in Arabic locale , it should be LTR

- change heuristic to LTR.

Change-Id: I3c5f413e48ceddbd931d713eb8c168431fcd09a2

Author: Fabrice Di Meglio

core/java/android/widget/TextView.java

@@ -8229,9 +8229,8 @@ boolean isInBatchEditMode() {
 
     TextDirectionHeuristic getTextDirectionHeuristic() {
         if (hasPasswordTransformationMethod()) {
-            // TODO: take care of the content direction to show the password text and dots justified
-            // to the left or to the right
-            return TextDirectionHeuristics.LOCALE;
+            // passwords fields should be LTR
+            return TextDirectionHeuristics.LTR;
         }
 
         // Always need to resolve layout direction first