samsung: audio: Add libprocessgroup dependency to set_sched_policy users

Add libprocessgroup dependency to audio hal that uses set_sched_policy.
Include sched_policy_ctrl.h header which now contains set_sched_policy
definition.

Exempt-From-Owner-Approval: janitorial

Bug: 111307099
Test: builds, boots

Change-Id: I8286daed7065c405ca06e87c1b8f6f6c301dc388
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
diff --git a/audio/Android.mk b/audio/Android.mk
index 64ada48..495a951 100644
--- a/audio/Android.mk
+++ b/audio/Android.mk
@@ -33,6 +33,7 @@
 	libcutils \
 	libaudioutils \
 	libhardware \
+	libprocessgroup \
 	libtinyalsa \
 	libtinycompress \
 	libaudioroute \