Oops, close the dir after listing it in ms0:/.

This was affecting some savedata modes, and showed up on tests.  Not sure
how it might've affected games, probably not much.

Core/FileSystems/DirectoryFileSystem.cpp

@@ -669,6 +669,7 @@ std::vector<PSPFileInfo> DirectoryFileSystem::GetDirListing(std::string path) {
 		if (!retval)
 			break;
 	}
+	FindClose(hFind);
 #else
 	dirent *dirp;
 	std::string localPath = GetLocalPath(path);