sys/syz-extract: restore kvm const extraction for arm64/ppc64

Change #2755 disabled KVM for arm64/ppc64, but KVM is supported on these arches
and has extensive support. It's pity to lose that support.

The real root cause of the problem with arm64/ppc64 is that some severe compilation
errors terminated compilation and did not let compiler spew all error messages.
As the result we did not parse all of them and did not disable all of them.
Re-try compilation multiple times instead of just 2 to fix this.

Update #2754

0 files changed, 0 insertions, 0 deletions