Fix default usb settings will set wrong function when onPause()

Bug: 229200265
Test: make -j64 RunSettingsRoboTests
Change-Id: Ibee2d39af8b341d03117d96029446ddcd45921fe

src/com/android/settings/connecteddevice/usb/UsbDefaultFragment.java

@@ -189,6 +189,8 @@ public class UsbDefaultFragment extends RadioButtonPickerFragment {
     @Override
     public void onPause() {
         super.onPause();
+        mCurrentFunctions = mUsbBackend.getCurrentFunctions();
+        Log.d(TAG, "onPause() : current functions : " + mCurrentFunctions);
         mUsbBackend.setDefaultUsbFunctions(mCurrentFunctions);
     }