[DO NOT MERGE] Update platform security string to 2019-04-01 on oc-mr1-dev
Bug:124119313
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 028e6c6..965adc3 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -181,7 +181,7 @@
     #  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 := 2019-03-05
+      PLATFORM_SECURITY_PATCH := 2019-04-01
 endif
 
 ifndef PLATFORM_BASE_OS