Update Security String to 2020-07-05

Bug: 156652977
Change-Id: Ifee743bae79d21c096a95d608552fbb4260aff6c
(cherry picked from commit 902a6e18e0113c9f62b61dd4260e26f8f2cdac62)
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index bad92f8..edcbf0a 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -250,7 +250,7 @@
     #  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 := 2020-07-01
+      PLATFORM_SECURITY_PATCH := 2020-07-05
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH