iosys-map: fix typo

Correct a spello/typo in comments.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240213224219.10644-1-rdunlap@infradead.org

include/linux/iosys-map.h

@@ -34,7 +34,7 @@
  * the same driver for allocation, read and write operations.
  *
  * Open-coding access to :c:type:`struct iosys_map <iosys_map>` is considered
- * bad style. Rather then accessing its fields directly, use one of the provided
+ * bad style. Rather than accessing its fields directly, use one of the provided
  * helper functions, or implement your own. For example, instances of
  * :c:type:`struct iosys_map <iosys_map>` can be initialized statically with
  * IOSYS_MAP_INIT_VADDR(), or at runtime with iosys_map_set_vaddr(). These