Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to e40278e7c9d6fd8bf24c03cde4cfcc56ddf08307
  - Fix unit tests for PrecheckOption

    Increased line coverage to 100%
    Increased branch coverage to clear Sonar major warning
    Removed console logging and cleaned up assertions

    Issue-ID: APPC-1499
    Change-Id: Ifc7163d2e112914749514099779bd5d75ba729c9
    Signed-off-by: Joss Armstrong <joss.armstrong@ericsson.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 7ebe540..e40278e 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 7ebe54041c04f938cf58fdec9e120347e64c543a
+Subproject commit e40278e7c9d6fd8bf24c03cde4cfcc56ddf08307