Add keyguard_config_prop for keyguard property

keyguard.no_require_sim becomes keyguard_config_prop to remove
exported*_default_prop

Bug: 155844385
Test: boot and see no denials
Change-Id: Icffa88b650a1d35d8c1cd29f89daf0644a79ddd3
diff --git a/private/property_contexts b/private/property_contexts
index d56c89c..ae55b31 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -342,7 +342,7 @@
 
 persist.sys.dalvik.vm.lib.2 u:object_r:dalvik_runtime_prop:s0 exact string
 
-keyguard.no_require_sim u:object_r:exported3_default_prop:s0 exact bool
+keyguard.no_require_sim u:object_r:keyguard_config_prop:s0 exact bool
 
 media.recorder.show_manufacturer_and_model u:object_r:exported3_default_prop:s0 exact bool