refactor: change all occurrences of RSS to RSE

The Runtime Security Subsytem (RSS) was renamed to Runtime Security
Engine (RSE). Change all occurrences of "RSS"/"rss" in the code and file
names to "RSE"/"rse".
The related changes in TF-A can be found under the "rss_rse_rename"
topic: https://review.trustedfirmware.org/q/topic:%22rss_rse_rename%22

Change-Id: Icd72ff3ed2d63e87d84baadfab02ccf75a545d08
Signed-off-by: David Vincze <david.vincze@arm.com>
diff --git a/expect/crash_passed_test.exp b/expect/crash_passed_test.exp
index d9907e3..efcddf7 100644
--- a/expect/crash_passed_test.exp
+++ b/expect/crash_passed_test.exp
@@ -1,9 +1,9 @@
 #
-# Copyright (c) 2023, Arm Limited. All rights reserved.
+# Copyright (c) 2023-2024, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
-# Expect script for AP/RSS non-volatile counter platform test
+# Expect script for AP/RSE non-volatile counter platform test
 #
 
 source [file join [file dirname [info script]] handle-arguments.inc]