memory: Use memory_region_name for name access

Despite being local to memory.c, use the helper function. This prepares
support for fully QOMifiying the name field of MR (which will remove
this state from MR completely).
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

memory.c

@@ -2027,8 +2027,8 @@ static void mtree_print_mr(fprintf_function mon_printf, void *f,
                    mr->romd_mode ? 'R' : '-',
                    !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
                                                                        : '-',
-                   mr->name,
-                   mr->alias->name,
+                   memory_region_name(mr),
+                   memory_region_name(mr->alias),
                    mr->alias_offset,
                    mr->alias_offset
                    + (int128_nz(mr->size) ?
@@ -2046,7 +2046,7 @@ static void mtree_print_mr(fprintf_function mon_printf, void *f,
                    mr->romd_mode ? 'R' : '-',
                    !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
                                                                        : '-',
-                   mr->name);
+                   memory_region_name(mr));
     }
 
     QTAILQ_INIT(&submr_print_queue);
@@ -2095,7 +2095,7 @@ void mtree_info(fprintf_function mon_printf, void *f)
     /* print aliased regions */
     QTAILQ_FOREACH(ml, &ml_head, queue) {
         if (!ml->printed) {
-            mon_printf(f, "%s\n", ml->mr->name);
+            mon_printf(f, "%s\n", memory_region_name(ml->mr));
             mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head);
         }
     }