Direct connect fix for "enhanced connection complete"

This fix was already implemented and merged in "connection complete",
copying to "enhanced connection complete".

Both methods will soon be merged together. This is part of effor to
ensure the diff between them is minimal.

Bug: 308032317
Flag: EXEMPT, already running in connection complete for months
Test: atest --host LeImplTest#direct_connection_after_background_connection
Change-Id: I425a8f860adc6b1d7d23c438732fd88859103af5