vehicle-aidl: Fix thread join would block

There is race condition in RecurrentTimer.cpp
for thread creation whcih created in initialization
list instead of constructor which the class member
variables are not init yet.

Bug: 231668271
Test: android.hardware.automotive.vehicle@V1-default-service_fuzzer
Change-Id: I7dfdff7aa3df4e4451522ad167863a41e27a349c