Add isConnectedHearingAidDevice function to check if it supports Hearing Aid profile

Bug: 116317072
Bug: 116044083
Bug: 79553082
Test: make -j50 RunSettingsLibRoboTests
Change-Id: I2950f63c4a95d692b77cfffeacc9d1d319243e0d
Merged-In: I2950f63c4a95d692b77cfffeacc9d1d319243e0d
(cherry picked from commit c509a65541bf0140b5da92ea1b1358f843ba0b89)
2 files changed