script, test:  do not indicate test fails in exit status
script, test:  do not indicate test fails in exit status

Return 0 also if some tests failed, as long as all tests could be run.

Fails are already indicated by echoing <test>.diff.

Change-Id: Ie80e226d8c435527b0fb277e8d556a370a9fc43d
Signed-off-by: Markus Metzger <5f675b2b36595f90898e014b548ff7d9bbff2ab7@intel.com>

andikleen/processor-trace,breadbaconic/processor-trace,hoangt/processor-trace,drupalhunter-team/processor-trace,hoangt/processor-trace,01org/processor-trace,breadbaconic/processor-trace,drupalhunter-team/processor-trace,shadown/processor-trace,shadown/processor-trace,pombreda/processor-trace,pombreda/processor-trace,01org/processor-trace,01org/processor-trace,andikleen/processor-trace