Bluetooth: Add support for Map client over L2cap

- Adding the support for Map client(MAP1.2).
- Add support to create & remove MNS sdp records.
- Add support to enable & disable srm, Fews Message Access Profile
  opreations don't require SRM header in their pdu. Eg. UpdateInbox,
  SetMessageStatus. SetNotificationRegistration.
- If obex based profile explicitly sets GET with final flag, then
  GET should always be sent as single packet request with final flag
  set.

Change-Id: I89f51ecf8b7834f0b131d043a5f49811914e9635
CRs-Fixed: 754956