Driver was not setting the bidirectional CHAP bit correctly in
the DDB entry.

JIRA Key: UPSISCSI-108
Signed-off-by: NLalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: NVikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>