Add FDN contact search config and FDN call capability

1. Added FDN contact search feature config config_fdn_contact_search
   and set to false.
2. Added call Capability as FDN_ENABLED. This will include for GSM call
   and if FDN is enabled.

Change-Id: I7388fe99dc51c962101ea6cf5ac2f866eae9b71e
CRs-Fixed: 798105