Add v7 alias

So that the module gets autoloaded when a v7 filesystem is mounted.

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/sysv/super.c

@@ -559,4 +559,5 @@ static void __exit exit_sysv_fs(void)
 
 module_init(init_sysv_fs)
 module_exit(exit_sysv_fs)
+MODULE_ALIAS("v7");
 MODULE_LICENSE("GPL");