Shows LE audio hearing aid device in a11y settings page (3/3)

Shows connected hearing aid in a11y settings page whether it's ASHA hearing aid or LE audio hearing aid. Makes sure preference summary is updated as expected when BluetoothHapClient profile connects or disconnects.

LE audio hearing aid will be a CSIP set. According to the CSIP spec, we will show the device is active without side information if there is only one device in the CSIP set and show the device is active left and right if both side of hearing aids are in the CSIP set.

Bug: 249235823
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityHearingAidPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=HearingAidPairingDialogFragmentTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=HearingAidUtilsTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AvailableMediaBluetoothDeviceUpdaterTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDetailsPairOtherControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDetailsRelatedToolsControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=ConnectedBluetoothDeviceUpdaterTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AvailableMediaDeviceGroupControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDevicesSliceTest
Change-Id: Ifd66cbd81481a1eb94613d89dfd8df16b8c43ae8