Add sepolicy for BLE Privacy sysprop

Bug: 224176587
Bug: 227605076
Change-Id: Ia2a2e59a51914885253871d39fe61a51f5dec06f
Test: Build, only sysprop definition.
diff --git a/private/property_contexts b/private/property_contexts
index d244108..3bc5cbd 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -480,6 +480,8 @@
 bluetooth.framework.support_persisted_state          u:object_r:bluetooth_config_prop:s0 exact bool
 bluetooth.framework.adapter_address_validation       u:object_r:bluetooth_config_prop:s0 exact bool
 
+bluetooth.core.gap.le.privacy.enabled                u:object_r:bluetooth_config_prop:s0 exact bool
+
 bluetooth.device.default_name                        u:object_r:bluetooth_config_prop:s0 exact string
 bluetooth.device.class_of_device                     u:object_r:bluetooth_config_prop:s0 exact string