CameraService: Use SCHED_FIFO for request queue thread in HFR

- Move SchedulingPolicyService from audioservice to mediautils

- When starting up a high speed stream config, set request queue thread
  to SCHED_FIFO using SchedulingPolicyService

Bug: 24227252
Change-Id: I224b59142bd111caf563779f55cddd62385b9bac
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 5bd9149..f586291 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -60,7 +60,7 @@
 #include "FastMixer.h"
 #include "FastCapture.h"
 #include "ServiceUtilities.h"
-#include "SchedulingPolicyService.h"
+#include "mediautils/SchedulingPolicyService.h"
 
 #ifdef ADD_BATTERY_DATA
 #include <media/IMediaPlayerService.h>