Add security class keystore2_key.

Keystore 2.0 has a different set of permission that it enforces.
We introduce keystore2_key so that we can set up policy for both
Keystore 1.0 and Keystore 2.0 for a gradual transition from one to
the other.

Bug: 158500146
Test: None
Change-Id: I3dcab06d73d242d63d21883659c304dfab8bf74f
Merged-In: I3dcab06d73d242d63d21883659c304dfab8bf74f
diff --git a/private/access_vectors b/private/access_vectors
index f41eadd..8364bc5 100644
--- a/private/access_vectors
+++ b/private/access_vectors
@@ -711,6 +711,31 @@
 	gen_unique_id
 }
 
+class keystore2
+{
+	add_auth
+	clear_ns
+	get_state
+	lock
+	reset
+	unlock
+}
+
+class keystore2_key
+{
+	delete
+	gen_unique_id
+	get_info
+	grant
+	list
+	manage_blob
+	rebind
+	req_forced_op
+	update
+	use
+	use_dev_id
+}
+
 class drmservice {
 	consumeRights
 	setPlaybackStatus