Updating security string to 2016-07-05 to release branches

b/28912173

Change-Id: I60b28f3859f7ee006841ed4308e15404590b60bf
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index e0c68cf..cb8ba51 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -103,7 +103,7 @@
   # Can be an arbitrary string, but must be a single word.
   #
   # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-  PLATFORM_SECURITY_PATCH := 2016-06-01
+  PLATFORM_SECURITY_PATCH := 2016-07-05
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"