Allow connectivity namespace to enable native level access flags.

Follow the steps: go/android-native-flag-api-manual

Bug: 179099277
Test: m -j
Test: manually verify connection to wifi after flash
Change-Id: Ieb5355d40aec9ed7a42b7ae5b250b696fcf00810
diff --git a/private/property_contexts b/private/property_contexts
index 5b832dc..9abc227 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -221,6 +221,7 @@
 persist.device_config.activity_manager_native_boot. u:object_r:device_config_activity_manager_native_boot_prop:s0
 persist.device_config.attempted_boot_count          u:object_r:device_config_boot_count_prop:s0
 persist.device_config.configuration.                u:object_r:device_config_configuration_prop:s0
+persist.device_config.connectivity.                 u:object_r:device_config_connectivity_prop:s0
 persist.device_config.input_native_boot.            u:object_r:device_config_input_native_boot_prop:s0
 persist.device_config.media_native.                 u:object_r:device_config_media_native_prop:s0
 persist.device_config.netd_native.                  u:object_r:device_config_netd_native_prop:s0