Replace direct pid writes with setting task profiles

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: Id00370b25af973a4b3813a4a1d6ccbd1e555c87f
Merged-In: Id00370b25af973a4b3813a4a1d6ccbd1e555c87f
diff --git a/media/mediaserver/mediaserver.rc b/media/mediaserver/mediaserver.rc
index f6c325c..cfc4258 100644
--- a/media/mediaserver/mediaserver.rc
+++ b/media/mediaserver/mediaserver.rc
@@ -3,4 +3,4 @@
     user media
     group audio camera inet net_bt net_bt_admin net_bw_acct drmrpc mediadrm
     ioprio rt 4
-    writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
+    task_profiles ProcessCapacityHigh HighPerformance