gcccpuopt update to version V0.99.11

I received a "Unrecognised CPU. Please email the following to: P@draigBrady.com" build warning on my Digital Ocean VM during installation. I emailed Pádraig Brady, he responded quickly, pushed a new version of gcccpuopt (V0.99.11), I downloaded it, verified it works on a few architectures, and then committed it.