Add libprocessgroup dependency and fix sched_policy include

surfaceflinger, installd and libvrflinger are using set_sched_policy
which is moved into libprocessgroup. Add libprocessgroup dependency
and include required headers.

Exempt-From-Owner-Approval: janitorial

Bug: 111307099
Test: builds, boots

Change-Id: Iccb7c54a85ca148d44ce687fe05e89ad4369e104
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
diff --git a/libs/vr/libvrflinger/vr_flinger.cpp b/libs/vr/libvrflinger/vr_flinger.cpp
index b57383a..a8a8476 100644
--- a/libs/vr/libvrflinger/vr_flinger.cpp
+++ b/libs/vr/libvrflinger/vr_flinger.cpp
@@ -12,9 +12,9 @@
 #include <binder/IServiceManager.h>
 #include <binder/ProcessState.h>
 #include <cutils/properties.h>
-#include <cutils/sched_policy.h>
 #include <log/log.h>
 #include <private/dvr/display_client.h>
+#include <processgroup/sched_policy.h>
 #include <sys/prctl.h>
 #include <sys/resource.h>