ci(coverity): Remove TC2 build configs

TC2 platform has been deprecated (TF-A: 49d6e19). Remove or convert
TC2 build configurations for TC3 (if not already present) to maintain
code coverage.

Change-Id: If95710e9e0e4516c7f9831f342d48e4966477629
Signed-off-by: David Vincze <david.vincze@arm.com>
1 file changed