Go to the old storage settings when using non-internal storage.

There are a few things which, currently, can only be done on
the old storage view. We can continue to use the storage
dashboard fragment for the internal storage, but for SD cards
and USB drives it makes sense to show the old view.

Bug: 34623728
Test: Manual
Change-Id: Ibe640decea6486a75034184c8f9f95bf00411553