Update Security String to 2017-11-01 on oc-dev bug:65631379
am: 8f4a4c2131

Change-Id: Iee28cf19c5020c8dde26c1a25a92609ee7221c8d
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index efb3de0..344843a 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -186,7 +186,7 @@
     #  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 := 2017-10-05
+      PLATFORM_SECURITY_PATCH := 2017-11-01
 endif
 
 ifndef PLATFORM_BASE_OS