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/tc_utils.sh b/tc_utils.sh
index c4ce4a1..8992f48 100644
--- a/tc_utils.sh
+++ b/tc_utils.sh
@@ -16,15 +16,15 @@
 kernel_addr=0x80000
 scp_ram_addr=0x0bd80000
 
-rss_rom_addr=0x11000000
+rse_rom_addr=0x11000000
 vmmaddrwidth=19
 rvbaddr_lw=0x0000
 rvbaddr_up=0x0000
 
-# AP bl1 0x00 is mapped to 0x70000000 in RSS memory map
+# AP bl1 0x00 is mapped to 0x70000000 in RSE memory map
 ap_bl1_flash_load_addr=0x70000000
 ap_bl1_flash_size=0x20000
-rss_revision="4ab7a20d"
+rse_revision="4ab7a20d"
 
 # Hafnium build repo containing Secure hafnium binaries
 spm_secure_out_dir=secure_tc_clang