MAP: Implementation of MAP Client role on Bluedroid.

Implementation changes to support Message Access Profile
client  role on Bluedroid stack.

CRs-fixed: 530274

Change-Id: I209909a2b18e43c7931571526b983453795f6c6b
(cherry picked from commit b63609abf3d5502e27065a67331e90b6b518016d)
(cherry picked from commit 75b7aaf66791cc2aaef6c3a73d2d5e2378b4f2b0)
(cherry picked from commit 415017e04689f8dc9939181fce4277bb6dad7021)