ddsf: implement namespace

libraries/libstratosphere/include/stratosphere/os.hpp

@@ -28,6 +28,7 @@
 #include <stratosphere/os/os_mutex.hpp>
 #include <stratosphere/os/os_condition_variable.hpp>
 #include <stratosphere/os/os_sdk_mutex.hpp>
+#include <stratosphere/os/os_sdk_condition_variable.hpp>
 #include <stratosphere/os/os_rw_lock.hpp>
 #include <stratosphere/os/os_transfer_memory.hpp>
 #include <stratosphere/os/os_semaphore.hpp>