Show audio output panel on the left in RTL

Bug: 292064212
Test: manual - switch to RTL language and panel should be on the left

Change-Id: I6f467c51f3d22d7803f8152312dea9fb7dc0de68
diff --git a/src/com/android/systemui/tv/media/TvMediaOutputDialog.java b/src/com/android/systemui/tv/media/TvMediaOutputDialog.java
index 473fd05..4dd8f7e 100644
--- a/src/com/android/systemui/tv/media/TvMediaOutputDialog.java
+++ b/src/com/android/systemui/tv/media/TvMediaOutputDialog.java
@@ -106,7 +106,8 @@
 
         final Window window = getWindow();
         final WindowManager.LayoutParams lp = window.getAttributes();
-        lp.gravity = Gravity.TOP | Gravity.END;
+        lp.gravity = Gravity.getAbsoluteGravity(Gravity.TOP | Gravity.END,
+                res.getConfiguration().getLayoutDirection());
         lp.width = res.getDimensionPixelSize(R.dimen.media_dialog_width);
         lp.height = screenHeight - 2 * marginVerticalPx;
         lp.horizontalMargin = ((float) marginEndPx) / screenWidth;