Create util::setThreadPriority

Used twice, there will be one more thread
to set priority.

Bug: 157158109
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I08d2dda56006dbaf5550986e2c580039a9ccafcd
Merged-In: I08d2dda56006dbaf5550986e2c580039a9ccafcd
4 files changed