Add directory for security tools.

Change-Id: I537a6f3d8f75582de6757a555fdec7e56234bc48
diff --git a/tools/security/OWNERS b/tools/security/OWNERS
new file mode 100644
index 0000000..c7c4e36
--- /dev/null
+++ b/tools/security/OWNERS
@@ -0,0 +1,7 @@
+# Each subdirectory should have its OWNERS.
+# Owned by Android Automotive Embedded Security team.
+skeys@google.com
+yimingjing@google.com
+keithmok@google.com
+sethmo@google.com
+radsaggi@google.com