target-i386: Postpone cpuid_level update to realize time Delay capping cpuid_level to 7 to realize time so property setters for cpuid_7_0_ebx_features and "level" could be used in any order/time between x86_cpu_initfn() and x86_cpu_realize(). Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>