Update git submodules

* Update docs/submodules/usecase-ui.git from branch 'master'
  to 11104e223d3c075144b3cd5bd49892e783773136
  - Merge "pie component- spec changes"
  - pie component- spec changes
    
    Added NgxEchartsModule to imports.
    
    Issue-ID: USECASEUI-280
    Change-Id: Ie650241660eb8e4d8636f39ad444e12123a6c7ed
    Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
    
diff --git a/docs/submodules/usecase-ui.git b/docs/submodules/usecase-ui.git
index a957153..11104e2 160000
--- a/docs/submodules/usecase-ui.git
+++ b/docs/submodules/usecase-ui.git
@@ -1 +1 @@
-Subproject commit a957153093c974b0554a9c6244f852cc0063d843
+Subproject commit 11104e223d3c075144b3cd5bd49892e783773136