Update Casablanca Maint release notes

Update release notes for 2nd Casablanca Maintenance
release.

Issue-ID: POLICY-1607
Change-Id: I283c7697df6ec7519ea3702728ddf06d035a7b09
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
(cherry picked from commit bc7c2bd6408ce2ee742a294456e45284d7ae2fc2)
1 file changed