Updated git submodules

Project: ccsdk/sli/core master 78af232946c8534fa154bd0b425daf2bcac73e00

Add unit test for ccsdk/core

*Add a unit test for SliStringUtils
This is to test substring method of SliStringUtils
and improve code coverage

Issue-Id: CCSDK-106
Change-Id: I73c5af3b036a92fdcb1d3d1be7eb0b3abc44fd5a
Signed-off-by: surya-huawei <a.u.surya@huawei.com>


diff --git a/docs/submodules/ccsdk/sli/core.git b/docs/submodules/ccsdk/sli/core.git
index dd9e2cb..78af232 160000
--- a/docs/submodules/ccsdk/sli/core.git
+++ b/docs/submodules/ccsdk/sli/core.git
@@ -1 +1 @@
-Subproject commit dd9e2cbc650434d7c0da1976f9eb1bfe161f721a
+Subproject commit 78af232946c8534fa154bd0b425daf2bcac73e00