Add support for virDomainGetLaunchSecurityInfo

Libvirt recently introduced support for getting launch security
parameters, most notably AMD SEV VM memory measurement. This API can't
be generated as it's using typed parameters which we need to allocate.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

generator.py

@@ -489,6 +489,7 @@ skip_impl = (
     'virDomainSetPerfEvents',
     'virDomainGetGuestVcpus',
     'virConnectBaselineHypervisorCPU',
+    'virDomainGetLaunchSecurityInfo',
 )
 
 lxc_skip_impl = (