Log: Bluetooth Connections

Logs bluetooth connections.
Note: This change is cherry picked from aosp: go/aog/647339.

Bug: b/72320489
Bug: b/74457175
Test: verified logs appear in adb logcat -b stats
Merged-In: Ibd082c6bb1e39e2453d59b5a0d8c6ba04047daaa
Change-Id: Ibd082c6bb1e39e2453d59b5a0d8c6ba04047daaa