Allow the remote provisioner app to set rkp_only properties

The properties for rkp_only are no longer read only.

This allows remote provisioner unit tests to enable/disable the remote
provisioning only mode, which is required to fully verify functionality.

Test: RemoteProvisionerUnitTests
Bug: 227306369
Change-Id: I8006712a49c4d0605f6268068414b49714bbd939
diff --git a/private/property_contexts b/private/property_contexts
index 1ad19c1..97d3764 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -1255,9 +1255,9 @@
 
 ro.zygote.disable_gl_preload u:object_r:zygote_config_prop:s0 exact bool
 
-# Store the URL that the provisioning code should point at.
-ro.remote_provisioning.strongbox.rkp_only u:object_r:remote_prov_prop:s0 exact bool
-ro.remote_provisioning.tee.rkp_only u:object_r:remote_prov_prop:s0 exact bool
+# Allows a device to run without batch attestation keys
+remote_provisioning.strongbox.rkp_only u:object_r:remote_prov_prop:s0 exact bool
+remote_provisioning.tee.rkp_only u:object_r:remote_prov_prop:s0 exact bool
 
 # Broadcast boot stages, which keystore listens to
 keystore.boot_level u:object_r:keystore_listen_prop:s0 exact int