Update Security String to 2022-09-01

Bug: 238435977
Change-Id: Ia6e58f49f783aa9af17622697ccae30f95f8938a
Merged-In: Ief6d0c790a563be2f273fe5d4ac4063237cefdfc
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index ba18c14..53b2abc 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 := 2022-08-01
+      PLATFORM_SECURITY_PATCH := 2022-09-01
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH