refactor(tc): print RSS interface test PSA status

Adding PSA status to print statement upon failing communication
initialization, non-volatile counter, and rotpk read interface calls in
platform_tests.

Change-Id: Ia949cc2d18e93efb68f663d0c4e5500ca9021a94
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
2 files changed