Update Security String to 2020-08-05 am: d4b7f4de4b

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/11826025

Change-Id: I79b57da2c0387b33868dd36d3881d1d9ee3801b7
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 094a99c..a33f4e7 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -240,7 +240,7 @@
     #  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 := 2020-08-01
+      PLATFORM_SECURITY_PATCH := 2020-08-05
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH