PBAP: Add support for PBAP 1.1.1 specification

This patch adds support for erratas to make the specification version
compatible to PBAP 1.1.1 specification.

Following errata needs to be supported to make the specification version
compatible to PBAP 1.1.1

   https://www.bluetooth.org/errata/errata_view.cfm?errata_id=1824

   Proposed modification to the text of the spec:
   5.3.3 Name
     This is the name of the folder to be retrieved. The value shall not include
     any path information, since the PullvCardListing function uses relative paths.
     An empty name header may be sent to retrieve the vCard Listing object of the
     current folder. However, it is illegal to issue a PullvCardListing request with
     an emtpy name header from the telecom/ folder.
     Any such request shall be responded to with a "Not Found" error message.

Bug: 21896912
Change-Id: I0fb2c7d96b6e34d0bf83bb62901a8fd47c470fe6