tests/vm: update openbsd to release 6.6

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-Id: <20191018102443.26469-1-kraxel@redhat.com>

tests/vm/openbsd

@@ -22,8 +22,8 @@ class OpenBSDVM(basevm.BaseVM):
     name = "openbsd"
     arch = "x86_64"
 
-    link = "https://cdn.openbsd.org/pub/OpenBSD/6.5/amd64/install65.iso"
-    csum = "38d1f8cadd502f1c27bf05c5abde6cc505dd28f3f34f8a941048ff9a54f9f608"
+    link = "https://cdn.openbsd.org/pub/OpenBSD/6.6/amd64/install66.iso"
+    csum = "b22e63df56e6266de6bbeed8e9be0fbe9ee2291551c5bc03f3cc2e4ab9436ee3"
     size = "20G"
     pkgs = [
         # tools