ia64: ptrace: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Link: https://lkml.kernel.org/r/20220318103729.157574-23-Julia.Lawall@inria.frSigned-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

arch/ia64/kernel/ptrace.c

@@ -2025,7 +2025,7 @@ static void syscall_get_args_cb(struct unw_frame_info *info, void *data)
 	 * - epsinstruction: cfm is set by br.call
 	 *   locals don't exist.
 	 *
-	 * For both cases argguments are reachable in cfm.sof - cfm.sol.
+	 * For both cases arguments are reachable in cfm.sof - cfm.sol.
 	 * CFM: [ ... | sor: 17..14 | sol : 13..7 | sof : 6..0 ]
 	 */
 	cfm = pt->cr_ifs;