CSD: Fix condition when dropping HAL BT CSD vals

When the device type is bluetooth and we do not have a cached
categorization we assume category unknown which should not allow the HAL
CSD values to propagate.

Test: manual test w/o automatic_bt_device_type
Bug: 325406957
Change-Id: I265a53b687405244cf01947e128dd59471b82ec2
1 file changed