fs: cramfs: add MODULE_DESCRIPTION()

Fix the 'make W=1' warning:
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/cramfs/cramfs.o

Signed-off-by: Jeff Johnson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Nicolas Pitre <[email protected]>
Acked-by: Al Viro <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>

Author: Jeff Johnson

fs/cramfs/inode.c

@@ -1003,4 +1003,5 @@ static void __exit exit_cramfs_fs(void)
 
 module_init(init_cramfs_fs)
 module_exit(exit_cramfs_fs)
+MODULE_DESCRIPTION("Compressed ROM file system support");
 MODULE_LICENSE("GPL");