[a11y][ExposedDropdownMenu] Fixed dropdown list not showing for non e…

…ditable dropdown menus in switch access mode.

For the editable type it remains as was: clicking on the edit text triggers the keyboard and clicking on the arrow icon shows the dropdown list.

PiperOrigin-RevId: 408655618

lib/java/com/google/android/material/textfield/DropdownMenuEndIconDelegate.java

@@ -131,7 +131,7 @@ public void onPopulateAccessibilityEvent(View host, @NonNull AccessibilityEvent
           // If dropdown is non editable, layout click is what triggers showing/hiding the popup
           // list. Otherwise, arrow icon alone is what triggers it.
           if (event.getEventType() == TYPE_VIEW_CLICKED
-              && accessibilityManager.isTouchExplorationEnabled()
+              && accessibilityManager.isEnabled()
               && !isEditable(textInputLayout.getEditText())) {
             showHideDropdown(editText);
           }