Ethereal 8.61 -- Small bugfix to 8.60

[AndrewGrant]

I made the mistake of compiling with -march=native and -march=tune, something I do for my internal testing because I get a faster executable.

I was under the impression my Windows box I compile on did not support popcount / bmi2 / sseX, but I must be wrong.

I'll make sure not to make this mistake again. Thanks for finding it.

~ Andrew