system/stack/srvc: Migrate to libbluetooth_log

Ignore-AOSP-First: Merge conflict
Test: m com.android.btservices
Bug: 305066880
Flag: EXEMPT, mechanical refactor
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0a1472fd9a515d53fc72589953c679f7322b97df)
Merged-In: Iacc9d5338d1e688e02f932947e7034038cf7289f
Change-Id: Iacc9d5338d1e688e02f932947e7034038cf7289f