Update git submodules

* Update docs/submodules/ccsdk/platform/plugins.git from branch 'master'
  to 7e1f8a90d2fd18a5169cea04b6bb53dd9288092e
  - Fix minor issues revealed by pylint

    Remove superfluous argument to str.format in dmaap.
    Fix two tests with the same name in dnsdesig.
    Raise a proper exception instead of bool in helm.

    Signed-off-by: Miroslav Los <miroslav.los@pantheon.tech>
    Issue-ID: CCSDK-1928
    Change-Id: I07ff9eaa3b25a4c7864eda2b6189d7357c887dd4

diff --git a/docs/submodules/ccsdk/platform/plugins.git b/docs/submodules/ccsdk/platform/plugins.git
index 18673c5..7e1f8a9 160000 (submodule)
--- a/docs/submodules/ccsdk/platform/plugins.git
+++ b/docs/submodules/ccsdk/platform/plugins.git
@@ -1 +1 @@
-Subproject commit 18673c56f47a3662ef8b0b981a9af774e2e29826
+Subproject commit 7e1f8a90d2fd18a5169cea04b6bb53dd9288092e