Start compat user select storage after targetSDK U, not T

When an app targets T sdk, we no longer show the compat user select
storage behavior, unless the app explicitly adds the user select
permission. We will show the two button prompt instead. This change also
includes tests

Bug: 299621675
Test: atest PhotoPickerPermissionTest
Change-Id: I196061fde8c0eba106ff7d09a6c62593df359794