vrend, vkr: set thread names and add trace points for vkr
The first two commits add pipe_thread_setname and set the thread name for the sync thread.
The rest does the same to vkr and add trace points to vkr.
/cc @zzyiwei
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The first two commits add pipe_thread_setname and set the thread name for the sync thread.
The rest does the same to vkr and add trace points to vkr.
/cc @zzyiwei