!353 多账户切换时，普通辅助应用没有关闭

Merge pull request !353 from Mupceet/release_0905_switchUser

services/aams/src/accessibility_account_data.cpp

@@ -80,6 +80,7 @@ void AccessibilityAccountData::OnAccountSwitched()
     for (auto itr = connectedA11yAbilities_.begin(); itr != connectedA11yAbilities_.end(); itr++) {
         itr->second->Disconnect();
     }
+    connectedA11yAbilities_.clear();
     enabledAbilities_.clear();
 }