Update platform security string to 2018-11-01 on pi-dev & master
Bug:114110585
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 3199c09..18cf002 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -231,7 +231,7 @@
     #  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 := 2018-10-05
+      PLATFORM_SECURITY_PATCH := 2018-11-01
 endif
 
 ifndef PLATFORM_SECURITY_PATCH_TIMESTAMP