[Do Not Merge] Update Security String to 2017-11-01 on mnc-dev bug:65631379 am: 0c93452c64 am: 0bae3f0fa4
am: b691e678be

Change-Id: I229b9489618e06aef683edb29c35469d4ba3ba0d
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 9be355a..5081bda 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -105,7 +105,7 @@
   #  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 := 2017-10-01
+  PLATFORM_SECURITY_PATCH := 2017-11-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"