Update git submodules

* Update docs/submodules/multicloud/azure.git from branch 'master'
  to de4f1d918ce01deecdf6144d870d4cfe30824a23
  - Update css file name in conf.py
    
    ribbon.css is the correct name of the css file.
    
    Issue-ID: CIMAN-376
    Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
    Change-Id: I6c84c252e7f860cd854fe50661ab6563ca7e82a2
    
diff --git a/docs/submodules/multicloud/azure.git b/docs/submodules/multicloud/azure.git
index 1b13149..de4f1d9 160000
--- a/docs/submodules/multicloud/azure.git
+++ b/docs/submodules/multicloud/azure.git
@@ -1 +1 @@
-Subproject commit 1b13149409645e3705708ca499e0bf82bdb1fe75
+Subproject commit de4f1d918ce01deecdf6144d870d4cfe30824a23