Change the configuration enable for Hearing Aids Profile

As part of adding isHearingAidsProfileSupported method to
BluetoothAdapter, the configuration for Hearing Aids
Profile is moved from the packages/apps/Bluetooth to the frameworks/base
repo so that it is not dependent on the BT enable state.

Test: Manual testing with configuration enabled and disabled.
Bug: 119617521
Change-Id: I13e30dab9df249d335fa15afae6f87bde3ecc1e4