Report Bluetooth system state in energy info

Bug: 322861875
Bug: 323083457
Test: m -j
Test: manual check bta_dm_obtain_system_context in logcat by
running adb shell dumpsys batterystats. The log should be aligned with
system context in terms of inquiry, LE scan, activation of
SCO/A2DP/LeAudio and number of ACL link.

Change-Id: If425c3afb7fbddc25c2e2bff328c06e722e9158e