[tests] Enable Object.create JSPerf tests

test/js-perf-test/JSTests.json

 {
   "name": "JSTests",
   "run_count": 3,
   "run_count_arm": 1,
   "run_count_arm64": 1,
   "timeout": 120,
   "units": "score",
   "total": true,
   "resources": ["base.js"],
   "tests": [
@@ skipping 152 matching lines @@
       "flags": ["--harmony"],
       "resources": [
         "assign.js",
         "create.js",
         "entries.js",
         "values.js"
       ],
       "results_regexp": "^%s\\-Object\\(Score\\): (.+)$",
       "tests": [
         {"name": "Assign"},
+        {"name": "Create"},
         {"name": "Entries"},
         {"name": "EntriesMegamorphic"},
         {"name": "Values"},
         {"name": "ValuesMegamorphic"}
       ]
     },
     {
       "name": "Scope",
       "path": ["Scope"],
       "main": "run.js",
@@ skipping 47 matching lines @@
         {"name": "Object.hasOwnProperty--DEINTERN-prop"},
         {"name": "Object.hasOwnProperty--NE-INTERN-prop"},
         {"name": "Object.hasOwnProperty--NE-DEINTERN-prop"},
         {"name": "Object.hasOwnProperty--el"},
         {"name": "Object.hasOwnProperty--el-str"},
         {"name": "Object.hasOwnProperty--NE-el"}
       ]
     }
   ]
 }