DO NOT MERGE - Update security string to 2016-02-01

b/26110717

Change-Id: Ifbb78b8c7cd5d2efa9e5501fc4e7216f336ccadc
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 802c6a2..4b86e72 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -73,7 +73,7 @@
   # 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 := 2016-01-01
+  PLATFORM_SECURITY_PATCH := 2016-02-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"