GetName/SetName: Broadcast intent from server

Since the server is responsible for having an up to date name, it make
sense for it to be the source of the associated intent.

Bug: 371656429
Bug: 368114370
Flag: com.android.bluetooth.flags.get_name_and_address_as_callback
Test: atest CtsBluetoothTestCases:BluetoothAdapterTest#setName_getName
Change-Id: I8cfe2d73d160db86c20bbb4296e004e555671cb1