Log Message:
textprox/py-rapidfuzz: Exclude i386 from avx2 PLIST conditional

This package had untested code to expect three files that are
avx2-only when building on i386, but those files don't actually get
built.  This is almost certainly because not all i486-and-up CPUs have
avx2 instructions.

Resolves failure to package on NetBSD 9 i386 using
  cpu0: "Intel(R) Core(TM)2 Duo CPU     T8100  @ 2.10GHz"