Update git submodules

* Update docs/submodules/ccsdk/platform/plugins.git from branch 'master'
  to 87d14cfc2cdcdfecbc75396d5347eae295bfb570
  - Merge "Migrate ccsdk-platform-plugins docs"
  - Migrate ccsdk-platform-plugins docs

    Merging this will create
    https://onap-ccsdk-platform-plugins.readthedocs.io
    This build will run in parallel
    to the current docs generation method
    until we are ready to cut over.

    Issue-ID: CIMAN-364
    Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
    Change-Id: I9aa49187b78337cbe5c3a787c75d52384b755857

diff --git a/docs/submodules/ccsdk/platform/plugins.git b/docs/submodules/ccsdk/platform/plugins.git
index 4daa9d9..87d14cf 160000 (submodule)
--- a/docs/submodules/ccsdk/platform/plugins.git
+++ b/docs/submodules/ccsdk/platform/plugins.git
@@ -1 +1 @@
-Subproject commit 4daa9d9a30306cfa6d25999cdc992d886fa405a8
+Subproject commit 87d14cfc2cdcdfecbc75396d5347eae295bfb570