Sepolicy for OMX hal.

Bug: 31399200
Test: Compiles
Change-Id: Ifb347a985df5deb85426a54c435c4a9c0248cb57
diff --git a/private/system_server.te b/private/system_server.te
index 30fe3e2..cba1ab3 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -179,6 +179,7 @@
 
 # Perform HwBinder IPC.
 hwbinder_use(system_server)
+hwallocator_use(system_server)
 binder_call(system_server, hal_bluetooth)
 binder_call(system_server, hal_boot)
 binder_call(system_server, hal_contexthub)