qom: set *ambiguous on all paths

So the caller contract is simpler.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Link: https://lore.kernel.org/r/20241002080806.2868406-3-marcandre.lureau@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

qom/object.c

@@ -2201,6 +2201,9 @@ Object *object_resolve_path_type(const char *path, const char *typename,
         }
     } else {
         obj = object_resolve_abs_path(object_get_root(), parts + 1, typename);
+        if (ambiguous) {
+            *ambiguous = false;
+        }
     }
 
     g_strfreev(parts);