KVM: selftests: Test all possible "invalid" PERF_CAPABILITIES.LBR_FMT vals

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2119111



commit 9d27d461
Author: Sean Christopherson <seanjc@google.com>
Date:   Thu Aug 4 12:18:15 2022 -0700

    KVM: selftests: Test all possible "invalid" PERF_CAPABILITIES.LBR_FMT vals

    Test all possible input values to verify that KVM rejects all values
    except the exact host value.  Due to the LBR format affecting the core
    functionality of LBRs, KVM can't emulate "other" formats, so even though
    there are a variety of legal values, KVM should reject anything but an
    exact host match.

Suggested-by: Like Xu <like.xu.linux@gmail.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>