Add tests for BluetoothPbapVcardManager (2/2)

Bug: 237548430
Test: atest BluetoothPbapVcardManagerTest
Ignore-AOSP-First: Merging into internal branches first
    in order to resolve merge conflict
Change-Id: I47f206c24bde11e28c13869b326461b3e76bbc7a
(cherry picked from commit cdc88159)
Merged-In: I47f206c24bde11e28c13869b326461b3e76bbc7a