Add new metadata APIs get/set for is_microphone_for_call_enabled

* These API allows application can set/get microphone for call enable status for the bluetooth device.
Default value is true.
* Add visibility to SettingsLib for bluetooth java_aconfig_library

Tag: #feature
Bug: 372395197
Bug: 349255906
Test: atest DatabaseManagerTest
Change-Id: Idda448b41a1a7ff0c7bf980f072752a80a8fc82f