Update Security String to 2019-04-01 Bug: 124119313
am: f9835d9f4d

Change-Id: I943b55e958358583268447a49d03e9c84ad9bae2
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 6923698..b806354 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -252,7 +252,7 @@
     #  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
 .KATI_READONLY := PLATFORM_SECURITY_PATCH