Keystore 2.0: Rename keystore2 enable property.

Test: N/A
Bug: 160623310
Change-Id: Id8de044e4810fe39375a910b34bfeb2715251282
diff --git a/keystore2/keystore2.rc b/keystore2/keystore2.rc
index bc040e5..c5fc72a 100644
--- a/keystore2/keystore2.rc
+++ b/keystore2/keystore2.rc
@@ -8,7 +8,7 @@
 
 # Start Keystore 2 conditionally
 # TODO b/171563717 Remove when Keystore 2 migration is complete.
-on nonencrypted && property:ro.android.security.keystore2.enable=true
+on nonencrypted && property:persist.android.security.keystore2.enable=true
     enable keystore2
 
 service keystore2 /system/bin/keystore2 /data/misc/keystore