Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/security/apparmor/match.c b/security/apparmor/match.c
index 5cb4dc1..06d764c 100644
--- a/security/apparmor/match.c
+++ b/security/apparmor/match.c
@@ -195,7 +195,7 @@
  *
  * Unpack a dfa that has been serialized.  To find information on the dfa
  * format look in Documentation/apparmor.txt
- * Assumes the dfa @blob stream has been aligned on a 8 byte boundry
+ * Assumes the dfa @blob stream has been aligned on a 8 byte boundary
  *
  * Returns: an unpacked dfa ready for matching or ERR_PTR on failure
  */