test_driver: Call virCheckFlags in testDomainReboot
test_driver: Call virCheckFlags in testDomainReboot

Currently the flags argument is completely ignored, but it should be
checked for any unsupported flags that might have been passed.

Signed-off-by: Ilias Stamatis <3ef66acc2700f2eb6746a592b321628ebd41accf@gmail.com>
Reviewed-by: Erik Skultety <2c14d38fa47c8799f1b9c16280abe27f8edfec6e@redhat.com>

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