Update security string to 2022-03-01

Bug: 211820647

Change-Id: I9afb39715b0e470866a344246566e6414071ae6a
Merged-In: Ic0fb477acd4bd79c0ee464bf53b5d688f74e4863
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 7bcd42b..0661e7f 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -231,7 +231,7 @@
     #  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 := 2022-02-01
+      PLATFORM_SECURITY_PATCH := 2022-03-01
 endif
 
 ifndef PLATFORM_SECURITY_PATCH_TIMESTAMP