* Fix format in the test scope
* Add user params to limit testing
Add parameters to reduce amount of testing.
Helpful for debugging or for machines with lower performance.
* Restore default value
* Print info only if testing params bigger than 0.
* Tests requiring image support use runTestHarnessWithCheck
Removing special case for images in runTestHarness.
Fixes#710
* Remove imageSupportRequired argument
Tests which require image support now specify this while
calling runTestHarnessWithCheck.
Fixes#710
Signed-off-by: Ellen Norris-Thompson <ellen.norris-thompson@arm.com>