fs: fix retry bug in OpenContentStorageFileSystem

libraries/libstratosphere/include/stratosphere/fssystem/buffers/fssystem_buffer_manager_utils.hpp

@@ -37,8 +37,7 @@ namespace ams::fssystem::buffers {
                     }
                     R_TRY(on_failure());
 
-                    /* TODO: os::SleepThread */
-                    svc::SleepThread(impl::RetryWait.GetNanoSeconds());
+                    os::SleepThread(impl::RetryWait);
 
                     continue;
                 }