[PANDORA_DEV] Allow Bluetooth hidden from Pandora

Pandora need to call some hidden api from bluetooth
Tested after cherry-picking the aosp/2151894 CL

Test: atest pts-bot:HFP/AG/DIS/BV-01-I -v
Ignore-AOSP-First: framework-bluetooth.impl is only on internal for now
Bug: 237447510
Change-Id: Ie558fb21b56018297bcf24c40dae0825e81f26f3