libxl: send lifecycle event on PMSuspend
libxl: send lifecycle event on PMSuspend

After a successful call to libxl_domain_suspend_only(), set domain
state to VIR_DOMAIN_PMSUSPENDED and send lifecycle event.

Signed-off-by: Jim Fehlig <39929b5b86d72d51fceac59b52303e3fe8a3083e@suse.com>
Reviewed-by: Daniel Henrique Barboza <627b089ad62deae9aaf06ccfa2c9056df28927e0@gmail.com>

andreabolognani/libvirt,jardasgit/libvirt,libvirt/libvirt,olafhering/libvirt,jfehlig/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,zippy2/libvirt,zippy2/libvirt,fabianfreyer/libvirt,libvirt/libvirt,nertpinx/libvirt,crobinso/libvirt,jfehlig/libvirt,olafhering/libvirt,olafhering/libvirt,zippy2/libvirt,libvirt/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,olafhering/libvirt,crobinso/libvirt,libvirt/libvirt,nertpinx/libvirt,andreabolognani/libvirt,jardasgit/libvirt,andreabolognani/libvirt,nertpinx/libvirt,jfehlig/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,zippy2/libvirt,nertpinx/libvirt,fabianfreyer/libvirt