Reorder SWIFT_ENABLE_VOLATILE and SWIFT_ENABLE_SYNCHRONIZATION

Author: kubamracek

test/lit.site.cfg.in

@@ -155,10 +155,10 @@ if "@SWIFT_ENABLE_EXPERIMENTAL_OBSERVATION@" == "TRUE":
     config.available_features.add('observation')
 if "@SWIFT_STDLIB_ENABLE_DEBUG_PRECONDITIONS_IN_RELEASE@" == "TRUE":
     config.available_features.add('swift_stdlib_debug_preconditions_in_release')
-if "@SWIFT_ENABLE_SYNCHRONIZATION@" == "TRUE":
-    config.available_features.add('synchronization')
 if "@SWIFT_ENABLE_VOLATILE@" == "TRUE":
     config.available_features.add('volatile')
+if "@SWIFT_ENABLE_SYNCHRONIZATION@" == "TRUE":
+    config.available_features.add('synchronization')
 if "@SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB@" == "TRUE":
     config.available_features.add('embedded_stdlib')