devel/boost-libs: do not try to build boost.stacktrace.from_exceptions on !amd64 (+)

Recently added Boost.Stacktrace.from_exceptions library is ready only for amd64 yet.
Exclude it from the build on any other ARCHes now.

While here, backport fix for interface change in Boost.UUID

Reported by: fallout

Sponsored by: Future Crew, LLC