Floss: Initialize folder for floss pandora server

This server is used by the pandora (pts-bot and avatar) with Floss.

Design doc: https://docs.google.com/document/d/1-mRTZKDFhZYe4Iqf_YRXhNduwyCfTN5dz105iycfyTE/edit?resourcekey=0-WzM7muW9I05lz1uzskNl5Q#heading=h.17wg41voij6q

Bug: 289480188
Test: mma packages/modules/Bluetooth
Tag: #floss
Change-Id: I061babc5dad3baa6c32e265f34744dd3bbb25c06