Re: [libvirt] [PATCH 2/7] conf: also mark the implicit video as primary

Commit 119cd06 started setting the primary bool for the first user-specified video even if user omitted the 'primary' attribute. However this was done before the addition of the implicit device. This broke startup of transient qemu domains with no <video>: https://bugzilla.redhat.com/show_bug.cgi?id=1325757 Move this default to virDomainDefPostParseInternal, after the addition of the implicit video device, to catch the implicit video as well.