apparmor: add missing params to aa_may_ptrace kernel-doc comments

When the cred was explicit passed through to aa_may_ptrace() the
kernel-doc comment was not properly updated.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311040508.AUhi04RY-lkp@intel.com/
Signed-off-by: John Johansen <john.johansen@canonical.com>

security/apparmor/task.c

@@ -278,7 +278,9 @@ static int profile_tracer_perm(const struct cred *cred,
 
 /**
  * aa_may_ptrace - test if tracer task can trace the tracee
+ * @tracer_cred: cred of task doing the tracing  (NOT NULL)
  * @tracer: label of the task doing the tracing  (NOT NULL)
+ * @tracee_cred: cred of task to be traced
  * @tracee: task label to be traced
  * @request: permission request
  *