Update Security String to 2022-09-01 am: 1af3c97b7c

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/19460693

Change-Id: I4ff58dd017583a1182a22729bdbdbd377d2abcc8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
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