Update git submodules

* Update docs/submodules/ccsdk/cds.git from branch 'master'
  to a31c304eaceaa579b4be976d987f1cdeddba05c2
  - Prioritization expiry and clean scheduler service

    Add prioritization expiry and clean scheduler service implementation.

    Optimizing message passing between processors.

    Added message sorting utils.

    Issue-ID: CCSDK-1917
    Signed-off-by: Brinda Santh <bs2796@att.com>
    Change-Id: I049ea3bae2e2c546244136f15c3d89deda1e7053

diff --git a/docs/submodules/ccsdk/cds.git b/docs/submodules/ccsdk/cds.git
index e9b1dfd..a31c304 160000 (submodule)
--- a/docs/submodules/ccsdk/cds.git
+++ b/docs/submodules/ccsdk/cds.git
@@ -1 +1 @@
-Subproject commit e9b1dfd73a2298cc9679e527ae90a651f5025dd2
+Subproject commit a31c304eaceaa579b4be976d987f1cdeddba05c2