Add remote_provisioning system service

This service is callable by system components like keystore2. This
service calls into a mainline module API to do all the work for remote
provisioning.

Also include new OWNERS for the RemoteProvisioning implementation.

Bug: 254112668
Test: Locally modify keystore to call the new service
Change-Id: I6708d0b415798c78a4d66f279589d9def552ae78
diff --git a/api/Android.bp b/api/Android.bp
index ef88790..fe283e1a 100644
--- a/api/Android.bp
+++ b/api/Android.bp
@@ -116,6 +116,7 @@
     system_server_classpath: [
         "service-media-s",
         "service-permission",
+        "service-rkp",
         "service-sdksandbox",
     ],
 }