ethernet: sun: Fix spelling mistake "mis-matched" -> "mismatched"

There is a spelling mistake in a dev_err message. Fix it.
Signed-off-by: NColin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220316234620.55885-1-colin.i.king@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/sun/niu.c

@@ -7909,7 +7909,7 @@ static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent,
 		 * won't get any interrupts and that's painful to debug.
 		 */
 		if (nr64(LDG_NUM(ldn)) != ldg) {
-			dev_err(np->device, "Port %u, mis-matched LDG assignment for ldn %d, should be %d is %llu\n",
+			dev_err(np->device, "Port %u, mismatched LDG assignment for ldn %d, should be %d is %llu\n",
 				np->port, ldn, ldg,
 				(unsigned long long) nr64(LDG_NUM(ldn)));
 			return -EINVAL;