Skip "LL Privacy" tests for cars with launch version before 29

According to automotive requirements, only Bluetoooth 4.1 is required if
launch version was before Android 11, but some tests in Bluetooth LE
Secure Client requires Bluetooth 4.2.

In such cases the following tests should be skipped:
- BleSecureConnectionPriorityClientTest
- BleSecureEncryptedClientTest

These are the same tests that are already skipped on TVs launched
with API 29 or earlier.

Test: Launch CtsVerifier and check that the tests are no longer present

Bug: 326281254

Change-Id: Ib8bebc493ff0174ec2e635efce07e070362ff896