[DO NOT MERGE] Update Security String to 2017-06-01 for nyc-dev

bug:37204197
Change-Id: I81ae6196028c983baf82800a364805025672bec9
(cherry picked from commit d9a5e995999d15175efba49e01a0844fe9d5cf84)
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 0b55b3f..1085294 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -114,7 +114,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-      PLATFORM_SECURITY_PATCH := 2017-05-05
+      PLATFORM_SECURITY_PATCH := 2017-06-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"