Notice of Filing and Immediate Effectiveness of a Proposed Rule Change Amending NYSE Arca Options Rule 6.40 To Specify That the Potential Range for the Settings Applicable to the Market Maker Risk Limitation Mechanism Will Be Between One and 100 Executions per Second, To Eliminate the Current Reference to the Default Setting and, in the Future, To Specify the Applicable Minimum, Maximum and Default Settings via Regulatory Bulletin