Fix failing bluetooth tests

Due to a security CL, the test environment isn't able to enable
bluetooth scanning.

Bug: 232565661
Bug: 232571088
Bug: 232571267
Test: atest CarSettingsUnitTests:com.android.car.settings.bluetooth
Change-Id: I74a49e0c38f005c4195adf40cbefcf66e245f38e
2 files changed