Add support for versioned x86_64 arches

[andrewlukoshko]

Recently Red Hat introduced versioned x86_64 arches support in RPM: x86_64_v2 x86_64_v3 x86_64_v4.
In terms of RPM macros they are different to x86_64 and should be specifically mentioned in ifarch-like conditions.

Hopefully, since Fedora 39 and CS10 there is %{x86_64} macro available:

# rpm --eval %{x86_64}
x86_64 x86_64_v2 x86_64_v3 x86_64_v4 amd64 em64t

This PR adds versioned x86_64 arches support by replacing x86_64 with %{x86_64} where necessary.

But this should be only considered if no more major efi-rpm-macros updates expected in Fedora 38 and RHEL/CS 8/9.
If they are expected then different approach is necessary.

[Conan-Kudo]

This makes sense. LGTM.