pseries: Remove versions from mc->desc

Currently, the versioned spapr machine types put the machine type version
into the description string.  PC does not do this, using just the name
itself to distinguish.  Doing the same lets us move setting the description
into the common base class, simplifying the code slightly.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru>

hw/ppc/spapr.c

@@ -2265,6 +2265,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     NMIClass *nc = NMI_CLASS(oc);
     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
 
+    mc->desc = "pSeries Logical Partition (PAPR compliant)";
     mc->init = ppc_spapr_init;
     mc->reset = ppc_spapr_reset;
     mc->block_default_type = IF_SCSI;
@@ -2309,7 +2310,6 @@ static void spapr_machine_2_5_class_init(ObjectClass *oc, void *data)
     MachineClass *mc = MACHINE_CLASS(oc);
     sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(oc);
 
-    mc->desc = "pSeries Logical Partition (PAPR compliant) v2.5";
     mc->alias = "pseries";
     mc->is_default = 1;
     smc->dr_lmb_enabled = true;
@@ -2335,7 +2335,6 @@ static void spapr_machine_2_4_class_init(ObjectClass *oc, void *data)
     };
     MachineClass *mc = MACHINE_CLASS(oc);
 
-    mc->desc = "pSeries Logical Partition (PAPR compliant) v2.4";
     mc->compat_props = compat_props;
 }
 
@@ -2376,7 +2375,6 @@ static void spapr_machine_2_3_class_init(ObjectClass *oc, void *data)
     };
     MachineClass *mc = MACHINE_CLASS(oc);
 
-    mc->desc = "pSeries Logical Partition (PAPR compliant) v2.3";
     mc->compat_props = compat_props;
 }
 
@@ -2418,7 +2416,6 @@ static void spapr_machine_2_2_class_init(ObjectClass *oc, void *data)
     };
     MachineClass *mc = MACHINE_CLASS(oc);
 
-    mc->desc = "pSeries Logical Partition (PAPR compliant) v2.2";
     mc->compat_props = compat_props;
 }
 
@@ -2454,7 +2451,6 @@ static void spapr_machine_2_1_class_init(ObjectClass *oc, void *data)
         { /* end of list */ }
     };
 
-    mc->desc = "pSeries Logical Partition (PAPR compliant) v2.1";
     mc->compat_props = compat_props;
 }