Add sepolicies for CPU HAL.

Change-Id: Ia091bf8f597a25351b5ee33b2c2afc982f175d51
Test: Ran `m; emulator; adb logcat -b all -d > logcat.txt;`
      and verified CPU HAL is running without any sepolicy violation.
Bug: 252883241
diff --git a/private/service_contexts b/private/service_contexts
index 2b9e88f..2e2e7b2 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -21,6 +21,7 @@
 android.hardware.cas.IMediaCasService/default                        u:object_r:hal_cas_service:s0
 android.hardware.confirmationui.IConfirmationUI/default              u:object_r:hal_confirmationui_service:s0
 android.hardware.contexthub.IContextHub/default                      u:object_r:hal_contexthub_service:s0
+android.hardware.cpu.monitor.IMonitor/default                        u:object_r:hal_cpu_service:s0
 android.hardware.drm.IDrmFactory/clearkey                            u:object_r:hal_drm_service:s0
 android.hardware.drm.ICryptoFactory/clearkey                         u:object_r:hal_drm_service:s0
 android.hardware.dumpstate.IDumpstateDevice/default                  u:object_r:hal_dumpstate_service:s0