trivial: fix typo in namei.h comment

Signed-off-by: Ori Avtalion <ori@avtalion.name>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

include/linux/namei.h

@@ -40,7 +40,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
  *  - follow links at the end
  *  - require a directory
  *  - ending slashes ok even for nonexistent files
- *  - internal "there are more path compnents" flag
+ *  - internal "there are more path components" flag
  *  - locked when lookup done with dcache_lock held
  *  - dentry cache is untrusted; force a real lookup
  */