Don't close USB type notification when USB is connected to USB devices.

Previously we show a notificatino to show the UsbModeChooser when
Android is connected to another Android via USB type C cable.
However UsbModeChoooser activity was closed immediately after a user
tapped the notification, if the Android worked as host.

FIXED=27535640

Change-Id: I707dcbf1021e7381096c0ae7cc2d712892ac5a5a

src/com/android/settings/deviceinfo/UsbModeChooserActivity.java

@@ -68,7 +68,9 @@ public class UsbModeChooserActivity extends Activity {
             String action = intent.getAction();
             if (UsbManager.ACTION_USB_STATE.equals(action)) {
                 boolean connected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
-                if (!connected) {
+                boolean hostConnected =
+                        intent.getBooleanExtra(UsbManager.USB_HOST_CONNECTED, false);
+                if (!connected && !hostConnected) {
                     mDialog.dismiss();
                 }
             }