Update security string to 2022-02-01 am: dbca77790b am: 5aa365533b

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/16483514

Change-Id: I425042256920f8ed9324503457639587e9237e0d
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index eb5db29..d0bdd21 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 := 2022-01-01
+      PLATFORM_SECURITY_PATCH := 2022-02-01
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH