Cert: print PID and TID in host log output

* This helps debugging multi-threaded issues with cert tests
* Sample output:

2021-08-18 02:40:01.388 3897800 3897925 BtGdModule - system/bt/gd/module.cc:99 - Start: Started SnoopLogger

Bug: 192010795
Tag: #gd-refactor
Test: gd/cert/run SimpleHalTest
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: Iebaec7c3b02d46a14e8df986423b655396a581a1