Move vm_accessor_test to avf-presubmit

As the test is all green since it was added in July.

Test: N/A
Change-Id: Ib15ebb43ee828910d2eaf292355970df93cc0527
diff --git a/TEST_MAPPING b/TEST_MAPPING
index a822210..fc88a59 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -46,6 +46,9 @@
     },
     {
       "name": "libdice_driver_test"
+    },
+    {
+      "name": "vm_accessor_test"
     }
   ],
   "avf-postsubmit": [
@@ -64,9 +67,6 @@
     {
       "name": "AvfRkpdAppGoogleIntegrationTests",
       "keywords": ["internal"]
-    },
-    {
-      "name": "vm_accessor_test"
     }
   ],
   "ferrochrome-postsubmit": [