PatchPanel: fix deadlock when creating a patch

In PatchPanel::createAudioPatch(), unlock AudioFlinger::mLock when calling
ThreadBase::sendCreateAudioPatchConfigEvent() to avoid deadlocks if the thread loop
needs to acquire AudioFlinger::mLock before processing the create patch request.

Also fix build with verbose log enabled in Threads.cpp.

Bug: 276386807
Test: repro setps in the bug
Change-Id: Iaa4a89588e75113316241373d3bdb6858c3893ba