Migrates to the new component name for A11yMenu in SettingsProvider.

Bug: 261252772
Test: Enable Menu-in-AAS on device, with shortcuts enabled;
      Ensure device's SettingsProvider database version is
      smaller than SETTINGS_VERSION;
      'adb sync' the new SettingsProvider and reboot;
      Observe that all A11yMenu settings are migrated;
Change-Id: Ia8abb81694569d9701c8c02bf61676d35035020c