Bluetooth: Support MAP Client role on Bluedroid.

Implementation of MAP Client (MCE) role on
Bluedroid stack. Include MAP Client Interface ID.

Change-Id: Icdf11b7f09a161e35aa3aa68b9b5fa315e18fd65

CRs-fixed: 539274
Merge pull request #1 from CyanogenMod/cm-10.2

Bluetooth: Support MAP Client role on Bluedroid.