drivers: net: wan: Fix trivial spelling

The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptor -> descriptor
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/wan/lmc/lmc_main.c

@@ -2063,7 +2063,7 @@ static void lmc_driver_timeout(struct net_device *dev, unsigned int txqueue)
     /*
      * Chip seems to have locked up
      * Reset it
-     * This whips out all our decriptor
+     * This whips out all our descriptor
      * table and starts from scartch
      */