Skip Bluetooth related tests on visible background users in CtsCarTestCases

These tests need to be skipped for secondary_user_on_secondary_display
because Bluetooth is not currently supported on visible background users

Bug: 352413711
Flag: EXEMPT test fix
Test: atest CarBluetoothTest
Test: atest --user-type secondary_user_on_secondary_display android.car.cts.CarBluetoothTest
Test: atest CarProjectionManagerTest
Test: atest --user-type secondary_user_on_secondary_display android.car.cts.CarProjectionManagerTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:e3e6bdcb43a676c6a37f02a3be4fc0fc962a2dd7)
(cherry picked from https://android-review.googlesource.com/q/commit:dc0cd31c278cb116464d7e5ec84e4c2a212327da)
Merged-In: I736987adc8c219301fc53dabd608115aa6eb0ea4
Change-Id: I736987adc8c219301fc53dabd608115aa6eb0ea4