target/i386/host-cpu: Consolidate the use of warn_report_once()

Use warn_report_once() to get rid of the static local variable "warned".

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <20240327103951.3853425-2-zhao1.liu@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed