Add prop for enabling system services

Added system_service_enable_prop domain for properties that could
enable/disable system services.

Bug: 340928990
Test: Local build + confirm bic not starting + presubmit
Ignore-AOSP-First: need to submit with changes in clockwork
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:09983fc534f280ac9a79f552eee5a473f2220df1)
Merged-In: Ife9041d30f10f2fbe7ab4cbcee1397901a21f0fb
Change-Id: Ife9041d30f10f2fbe7ab4cbcee1397901a21f0fb
diff --git a/private/property.te b/private/property.te
index 19513d9..77fd497 100644
--- a/private/property.te
+++ b/private/property.te
@@ -66,6 +66,7 @@
 system_internal_prop(game_manager_config_prop)
 system_internal_prop(hidl_memory_prop)
 system_internal_prop(suspend_debug_prop)
+system_internal_prop(system_service_enable_prop)
 
 # Properties which can't be written outside system
 system_restricted_prop(device_config_virtualization_framework_native_prop)