Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to fd6ba7eed34a05e46a90c61288702484576df03a
  - Fix in RestConf - Policy model

    Bug fix in policy model of restconf collector

    Change-Id: I66ece74e05b898c24dc62da85ee2f596ae4c40fe
    Issue-ID: SDC-2101
    Signed-off-by: Vidyashree Rama <vidyashree.rama@huawei.com>

diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index 5f06322..fd6ba7e 160000 (submodule)
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit 5f063227364206daacb507e7ec8de3adbdaac28d
+Subproject commit fd6ba7eed34a05e46a90c61288702484576df03a