Set os_type for installer to fix test suite

Author: berrange

virtinst/FullVirtGuest.py

@@ -115,7 +115,7 @@ def get_os_variant_label(type, variant):
 
     def __init__(self, type=None, arch=None, connection=None, hypervisorURI=None, emulator=None, installer=None):
         if not installer:
-            installer = DistroManager.DistroInstaller(type = type)
+            installer = DistroManager.DistroInstaller(type = type, os_type = "hvm")
         Guest.Guest.__init__(self, type, connection, hypervisorURI, installer)
         self.disknode = "hd"
         self.features = { "acpi": None, "pae": util.is_pae_capable(), "apic": None }

virtinst/ParaVirtGuest.py

@@ -28,7 +28,7 @@
 class ParaVirtGuest(Guest.XenGuest):
     def __init__(self, type=None, connection=None, hypervisorURI=None, installer=None):
         if not installer:
-            installer = DistroManager.DistroInstaller(type = type)
+            installer = DistroManager.DistroInstaller(type = type, os_type = "linux")
         Guest.Guest.__init__(self, type, connection, hypervisorURI, installer)
         if self.type == "xen":
             self.disknode = "xvd"