tf-coverity: exclude arm/tc platform test files

Change-Id: I70b428722aec3c22f17740350d10db838d70bcd1
Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
(cherry picked from commit d37c1a7a242896d640dcf134482ad2454dffcc83)
1 file changed