Export symbol zfs_attr_table

Export the zfs_attr_table symbol so it may be used by non-zpl
consumers which are still interested in writing a zpl compatible
dataset (e.g. Lustre).

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

module/zfs/zfs_sa.c

@@ -412,6 +412,7 @@ zfs_sa_upgrade_txholds(dmu_tx_t *tx, znode_t *zp)
 	}
 }
 
+EXPORT_SYMBOL(zfs_attr_table);
 EXPORT_SYMBOL(zfs_sa_readlink);
 EXPORT_SYMBOL(zfs_sa_symlink);
 EXPORT_SYMBOL(zfs_sa_get_scanstamp);