Revert "add correct bluetooth lib vendor setup"

Didn't work!

This reverts commit f31e6c81a314ca93c45007c9a54d477a1acd41fa.
Revert "Revert "libbt: bluetooth fixes""

Didn't work!

This reverts commit d8b9a49d1d6c4d3b6b172d9ffe67c1d343635e2c.