refactor(tc): change all occurrences of RSS to RSE

Changes all occurrences of "RSS" and "rss" in the code and build files
to "RSE" and "rse".

Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: Idec0bf7a90ae381f5bc968e1bb167daace24a11f
19 files changed