Create metadata after the device is bonded

DatabaseManager creates a metadata entry for the devices when bonding. If the BT is restarted when bonding is going on, the BOND_NONE event is not generated and the residual metadata entry is not removed.

Change-Id: I96ac1e9b464ecc02aeef60f69d3a3a32fe643cc9
Test: atest CtsBluetoothTestCases:android.bluetooth.cts.BluetoothDeviceTest
Flag: com.android.bluetooth.flags.create_metadata_after_bonding
Bug: 387523986
Bug: 387523991