Updated git submodules

Project: integration casablanca e7f21db983fdee3791752aa55d90b1094b1c6b34

Update versions for sdnc Casablanca mtce release

Update version manifests for SDNC artifacts to reflect Casablanca
Maintenance Release artifact

The list of defects addressed by this version (1.4.4)
may be found in the following Jira links:
    SDNC fixes : https://jira.onap.org/issues/?filter=11623
    CCSDK fixes : https://jira.onap.org/issues/?filter=11622

Change-Id: I90d36a52f0261c48222037e42c357fbc1219eb1e
Issue-ID: SDNC-558
Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 1e48b50..e7f21db 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 1e48b50b25aa33dae57cbff10900d9d4797fb196
+Subproject commit e7f21db983fdee3791752aa55d90b1094b1c6b34