Update git submodules

* Update docs/submodules/ccsdk/features.git from branch 'master'
  to f6f3b57be8e57ffc6790d139b0b7f168b8cc69e6
  - improve code coverage

    more unit tests for common and data-provider

    Issue-ID: SDNC-1063
    Signed-off-by: Michael Dürre <michael.duerre@highstreet-technologies.com>
    Change-Id: Id99cb3e300b9649b77e0900347fbefae8d55cd87
    Signed-off-by: Michael Dürre <michael.duerre@highstreet-technologies.com>

diff --git a/docs/submodules/ccsdk/features.git b/docs/submodules/ccsdk/features.git
index 561aa2a..f6f3b57 160000 (submodule)
--- a/docs/submodules/ccsdk/features.git
+++ b/docs/submodules/ccsdk/features.git
@@ -1 +1 @@
-Subproject commit 561aa2a8ef7bd222d274aea065929920aedd0723
+Subproject commit f6f3b57be8e57ffc6790d139b0b7f168b8cc69e6