qemu: validate: Enforce compile time switch type checking for videos

There wasn't an explicit type case to the video type enum in
qemuDomainDeviceDefValidateVideo, _TYPE_GOP was also missing from the
switch.
Signed-off-by: NErik Skultety <eskultet@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

src/conf/domain_conf.h

@@ -1453,7 +1453,7 @@ struct _virDomainVideoDriverDef {
 };
 
 struct _virDomainVideoDef {
-    int type;
+    int type;   /* enum virDomainVideoType */
     unsigned int ram;  /* kibibytes (multiples of 1024) */
     unsigned int vram; /* kibibytes (multiples of 1024) */
     unsigned int vram64; /* kibibytes (multiples of 1024) */

src/qemu/qemu_domain.c

@@ -4470,10 +4470,11 @@ qemuDomainDeviceDefValidateHostdev(const virDomainHostdevDef *hostdev,
 static int
 qemuDomainDeviceDefValidateVideo(const virDomainVideoDef *video)
 {
-    switch (video->type) {
+    switch ((virDomainVideoType) video->type) {
     case VIR_DOMAIN_VIDEO_TYPE_XEN:
     case VIR_DOMAIN_VIDEO_TYPE_VBOX:
     case VIR_DOMAIN_VIDEO_TYPE_PARALLELS:
+    case VIR_DOMAIN_VIDEO_TYPE_GOP:
     case VIR_DOMAIN_VIDEO_TYPE_DEFAULT:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("video type '%s' is not supported with QEMU"),