Replace direct pid writes with setting task profiles for bluetooth interfaces

For easy transition from SchedTune to UtilClamp, direct access to these
cgroups should be abstracted by using task profiles. Replace writepid
commands with new task_profiles command.

Bug: 155419956
Test: change .rc file and confirm task profile is applied
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ie81da380a9343e098362f5fee5026799c4486e7e