Update contentDescription of the DismissView when locale changes

When the locale changes, update not only text
but also contentDescription of the DismissView.

Test: switch language and observe dismiss view description
Fixes: 31320721
Change-Id: If89fd6d2f3c3819927a181ff69849b66855ae451

packages/SystemUI/src/com/android/systemui/statusbar/DismissView.java

@@ -56,6 +56,8 @@ public class DismissView extends StackScrollerDecorView {
     protected void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
         mDismissButton.setText(R.string.clear_all_notifications_text);
+        mDismissButton.setContentDescription(
+                mContext.getString(R.string.accessibility_clear_all));
     }
 
     public boolean isButtonVisible() {