tc: new tf_config with rss-nv-counters

Creating new tf_config with PLATFORM_TEST for rss-nv-counters to run
test for AP/RSS NV counter interface. Boot will suspend after test
whether pass or fail.

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I0e1e30e4013c383f6ba567ca3ea7dafa5ff26b81
1 file changed