Update Security String to 2022-09-01

Bug: 238435977
Change-Id: Ief6d0c790a563be2f273fe5d4ac4063237cefdfc
Merged-In: Ibcc1999668338bdfa888c52d3e3a0ccb6b0bf5e1
(cherry picked from commit 3bcddee129ebafdb4ba590ddb79834d99bb0b84f)
Merged-In: Ief6d0c790a563be2f273fe5d4ac4063237cefdfc
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 58a845a..6407eaf 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 := 2022-08-01
+      PLATFORM_SECURITY_PATCH := 2022-09-01
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH