tomoyo: Fix typo in comments.

Spotted by developers and codespell program.

Co-developed-by: Xiaoming Ni <[e-mail]>
Signed-off-by: Xiaoming Ni <[e-mail]>
Co-developed-by: Souptick Joarder <[e-mail]>
Signed-off-by: Souptick Joarder <[e-mail]>
Signed-off-by: Tetsuo Handa <[e-mail]>

security/tomoyo/audit.c

···
 /* Lock for "struct list_head tomoyo_log". */
 static DEFINE_SPINLOCK(tomoyo_log_lock);
 
-/* Length of "stuct list_head tomoyo_log". */
+/* Length of "struct list_head tomoyo_log". */
 static unsigned int tomoyo_log_count;
 
 /**

security/tomoyo/common.c

···
 			if (strstr(value, tomoyo_mode[mode]))
 				/*
 				 * Update lower 3 bits in order to distinguish
-				 * 'config' from 'TOMOYO_CONFIG_USE_DEAFULT'.
+				 * 'config' from 'TOMOYO_CONFIG_USE_DEFAULT'.
 				 */
 				config = (config & ~7) | mode;
 		if (config != TOMOYO_CONFIG_USE_DEFAULT) {
···
  * tomoyo_read_control - read() for /sys/kernel/security/tomoyo/ interface.
  *
  * @head:       Pointer to "struct tomoyo_io_buffer".
- * @buffer:     Poiner to buffer to write to.
+ * @buffer:     Pointer to buffer to write to.
  * @buffer_len: Size of @buffer.
  *
  * Returns bytes read on success, negative value otherwise.
···
 /**
  * tomoyo_parse_policy - Parse a policy line.
  *
- * @head: Poiter to "struct tomoyo_io_buffer".
+ * @head: Pointer to "struct tomoyo_io_buffer".
  * @line: Line to parse.
  *
  * Returns 0 on success, negative value otherwise.

security/tomoyo/condition.c

···
  * @argc: Length of @argc.
  * @argv: Pointer to "struct tomoyo_argv".
  * @envc: Length of @envp.
- * @envp: Poiner to "struct tomoyo_envp".
+ * @envp: Pointer to "struct tomoyo_envp".
  *
  * Returns true on success, false otherwise.
  */

security/tomoyo/domain.c

···
  *
  * @bprm: Pointer to "struct linux_binprm".
  * @pos:  Location to dump.
- * @dump: Poiner to "struct tomoyo_page_dump".
+ * @dump: Pointer to "struct tomoyo_page_dump".
  *
  * Returns true on success, false otherwise.
  */

security/tomoyo/gc.c

···
 	return;
 reinject:
 	/*
-	 * We can safely reinject this element here bacause
+	 * We can safely reinject this element here because
 	 * (1) Appending list elements and removing list elements are protected
 	 *     by tomoyo_policy_lock mutex.
 	 * (2) Only this function removes list elements and this function is