PBAPS: Get vcard when asked in alphabetical order

This change is required to provide the proper vcard
when asked by the client in alphabetical order. The issue
was intoduced by changes which are coming from New M Stock
changes, and with this fix L and M would have the same
behavior.

CR's Fixed: 942710
Change-Id: Ie7990992b4dd22add3526aa0050121e680567bb8