Pbap use profileConnector, resolveSystemService api fix

* All profiles use the BluetoothProfileConnector but not Pbap.
I reproduced the changes that were made in aosp/932813 for all other
profiles. This allow pbap to no longer call resolveSystemService.
* `Intent.resolveSystemService` is an hidden API and can no longer be
called from Bluetooth as we aim to become mainline. It's code is simple
enough to be copied.

Tag: #refactor
Bug: 200200870
Test: atest BluetoothInstrumentationTests
Merged-In: I838b910c633b3ca943fec01f3ccca466ff65f892

Change-Id: I838b910c633b3ca943fec01f3ccca466ff65f892