Rename ro.monkey to monkey.running

So that Monkey can set ro.mokey before running and reset it after running.
diff --git a/core/java/android/accounts/AccountManagerService.java b/core/java/android/accounts/AccountManagerService.java
index 800ad749..e312ac1 100644
--- a/core/java/android/accounts/AccountManagerService.java
+++ b/core/java/android/accounts/AccountManagerService.java
@@ -152,7 +152,7 @@
             new AtomicReference<AccountManagerService>();
 
     private static final boolean isDebuggableMonkeyBuild =
-            SystemProperties.getBoolean("ro.monkey", false)
+            SystemProperties.getBoolean("monkey.running", false)
                     && SystemProperties.getBoolean("ro.debuggable", false);
     private static final Account[] EMPTY_ACCOUNT_ARRAY = new Account[]{};