apparmor: fix typo "traverse"

Signed-off-by: NZygmunt Krynicki <zygmunt.krynicki@canonical.com>
Acked-by: NChristian Boltz <apparmor@cboltz.de>
Signed-off-by: NJohn Johansen <john.johansen@canonical.com>

security/apparmor/match.c

@@ -472,7 +472,7 @@ unsigned int aa_dfa_match(struct aa_dfa *dfa, unsigned int start,
 
 /**
  * aa_dfa_next - step one character to the next state in the dfa
- * @dfa: the dfa to tranverse (NOT NULL)
+ * @dfa: the dfa to traverse (NOT NULL)
  * @state: the state to start in
  * @c: the input character to transition on
  *