Fix CPUID::has_cpuid_bit
Fix CPUID::has_cpuid_bit

It would return true if any bits were set instead of if all the bits
were set. It is only currently called with a single bit but that might
change in the future.

randombit/botan,randombit/botan,randombit/botan,webmaster128/botan,randombit/botan,randombit/botan,webmaster128/botan,webmaster128/botan,webmaster128/botan,webmaster128/botan