[le audio] Set BASS connection policy with other LEA GATT profiles

If setting LE audio policies is triggered by CSIP profile connected,
we didn't set BASS with other LEA GATT profiles. This will cause the
issue that one bud enabled BASS while the other bud didn't.
Adding this to ensure the connection policies are aligned among member
devices. And this will also support in LE audio only device case.

Bug: 350877103
Flag: EXEMPT, trivial change, covered by unit test
Test: atest LeAudioServiceTest
Test: manual tested private broadcast
Change-Id: I4c5e11e2d6a348ec232b0cce05885e5921576a93