FPII-2844 :Bump Security Patch level to 2017-03-05

Change-Id: I36bd4fbc2a34961da28060a74479a2b0592f23f8
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 32c98fa..d558953 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 := 2017-02-05
+  PLATFORM_SECURITY_PATCH := 2017-03-05
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"