Rename ro.monkey to monkey.running

So that Monkey can set it before running and reset it after running.
diff --git a/phone/com/android/internal/policy/impl/LockScreen.java b/phone/com/android/internal/policy/impl/LockScreen.java
index 7514cc2..7231026 100644
--- a/phone/com/android/internal/policy/impl/LockScreen.java
+++ b/phone/com/android/internal/policy/impl/LockScreen.java
@@ -147,7 +147,7 @@
     private boolean shouldEnableMenuKey() {
         final Resources res = getResources();
         final boolean configDisabled = res.getBoolean(R.bool.config_disableMenuKeyInLockScreen);
-        final boolean isMonkey = SystemProperties.getBoolean("ro.monkey", false);
+        final boolean isMonkey = SystemProperties.getBoolean("monkey.running", false);
         final boolean fileOverride = (new File(ENABLE_MENU_KEY_FILE)).exists();
         return !configDisabled || isMonkey || fileOverride;
     }