Pass copied CallState to listeners in same process

If listener is in the same process, original instance can be passed
to the listener via AIDL without serialization/de-serialization. So,
we need to pass copied one to that listners.
Since the element is newly created instead of modification in case
of call attribute change, we can use shallow copy for this.

Bug: 379126049
Flag: com.android.internal.telephony.flags.pass_copied_call_state_list
Test: atest FrameworksTelephonyTests
Change-Id: Icd9d527a4ea56c2bf8532072d3a3592333db5b88