Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Merge "add unit tests for cache module"
  - add unit tests for cache module

    Change-Id: I2dcfa65867ddfe2a505c2432a52fa8869ae5589a
    Signed-off-by: ahmed.helmy <ahmad.helmy@orange.com>

diff --git a/docs/submodules/moon b/docs/submodules/moon
index 277b3bf..eba6e45 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit 277b3bf54e7496bf48a489a238795419a0d7051c
+Subproject commit eba6e45dfe531102c0bb7c3f14778965abaef2aa