Revert "Remove duplicate strings."

Revert submission 19748582-settings_yesno

Reason for revert: Common strings in English could be translated into different strings in other languages.

Reverted changes: /q/submissionid:19748582-settings_yesno

Bug: 272603842
Test: build and open Settings app
Test: atest SettingsRoboTests
Change-Id: Iaad301c5513478fb95e40987ea3ccb4f923d71fa

src/com/android/settings/accessibility/AccessibilityUtil.java

@@ -130,7 +130,8 @@ public final class AccessibilityUtil {
     static CharSequence getSummary(Context context, String settingsSecureKey) {
         final boolean enabled = Settings.Secure.getInt(context.getContentResolver(),
                 settingsSecureKey, State.OFF) == State.ON;
-        final int resId = enabled ? R.string.on : R.string.off;
+        final int resId = enabled ? R.string.accessibility_feature_state_on
+                : R.string.accessibility_feature_state_off;
         return context.getResources().getText(resId);
     }